خيارات البحث
النتائج 611 - 620 من 723
Changes in viable bacterial counts and physicochemical parameters of water used during live transportation of Pangasius catfish (Pangasianodon hypophthalmus) in Bangladesh النص الكامل
2022
A. N. M. Rezvi Kaysar Bhuiyan (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Mubarack Hossain (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Naim Uddin (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Anwar Hossain (Biswas Agro-Fisheries and Hatchery Ltd., Mahbub Group of Industries, Trishal, Mymensingh, Bangladesh) | Md. Ismail Hossain (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Nurul Haider (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.)
Changes in viable bacterial counts and physicochemical parameters of water used during live transportation of Pangasius catfish (Pangasianodon hypophthalmus) in Bangladesh النص الكامل
2022
A. N. M. Rezvi Kaysar Bhuiyan (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Mubarack Hossain (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Naim Uddin (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Anwar Hossain (Biswas Agro-Fisheries and Hatchery Ltd., Mahbub Group of Industries, Trishal, Mymensingh, Bangladesh) | Md. Ismail Hossain (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Md. Nurul Haider (Department of Fisheries Technology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.)
Objective: The study was undertaken to assess the changes in viable bacterial counts and physicochemical parameters of water used during the live transportation of Pangasius catfish (Pangasianodon hypophthalmus). The correlations between the changing patterns of these parameters were also established. Materials and Methods: Water samples were collected every 2 h interval, plated onto agar plates for assesing viable bacterial counts. Physicochemical parameters, namely, water temperature, dissolved oxygen (DO), pH, and ammonia (NH3) concentration in the water were measured with a glass thermometer, DO test kit, pH test kit, and total NH3 measurement kit, respectively. Results: The viable bacterial counts increased significantly from 0 to 2 h in all the studied chan¬nels and remained almost similar up to the end of the supply channels. The water temperature was almost stable regardless of the supply channels and transportation period at around 30°C. The DO concentration and pH level decreased, and NH3 concentrations increased gradually in all the supply channels. The viable bacterial counts were inversely correlated to the DO levels and directly associated with the NH3 concentrations of the water used during the live transportation of Pangasius catfish. Conclusions: Gradual increase in viable bacterial counts and fluctuation in some vital physicochemical parameters with the duration of transportation indicated an unfavorable environment for the survival of Pangasius catfish. [J Adv Vet Anim Res 2022; 9(1.000): 66-77]
اظهر المزيد [+] اقل [-]Changes in viable bacterial counts and physicochemical parameters of water used during live transportation of Pangasius catfish (Pangasianodon hypophthalmus) in Bangladesh النص الكامل
2022
A. N. M. Rezvi Kaysar Bhuiyan | Md. Mubarack Hossain | Md. Naim Uddin | Md. Anwar Hossain | Md. Ismail Hossain | Md. Nurul Haider
Objective: The study was undertaken to assess the changes in viable bacterial counts and physicochemical parameters of water used during the live transportation of Pangasius catfish (Pangasianodon hypophthalmus). The correlations between the changing patterns of these parameters were also established. Materials and Methods: Water samples were collected every 2 h interval, plated onto agar plates for assesing viable bacterial counts. Physicochemical parameters, namely, water temperature, dissolved oxygen (DO), pH, and ammonia (NH3) concentration in the water were measured with a glass thermometer, DO test kit, pH test kit, and total NH3 measurement kit, respectively. Results: The viable bacterial counts increased significantly from 0 to 2 h in all the studied chan¬nels and remained almost similar up to the end of the supply channels. The water temperature was almost stable regardless of the supply channels and transportation period at around 30°C. The DO concentration and pH level decreased, and NH3 concentrations increased gradually in all the supply channels. The viable bacterial counts were inversely correlated to the DO levels and directly associated with the NH3 concentrations of the water used during the live transportation of Pangasius catfish. Conclusions: Gradual increase in viable bacterial counts and fluctuation in some vital physicochemical parameters with the duration of transportation indicated an unfavorable environment for the survival of Pangasius catfish. [J Adv Vet Anim Res 2022; 9(1.000): 66-77]
اظهر المزيد [+] اقل [-]Screening of antibiotic residue in transported live fish and water collected from different fish markets in Mymensingh district of Bangladesh النص الكامل
2022
Md. Mehedi Hasan (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Kazi Rafiq (Department of Pharmacology, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Most. Rifat Ara Ferdous (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Md. Tarek Hossain (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Arifa Parvin Ripa (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Shahroz Mahean Haque (Department of Pharmacology, Bangladesh Agriculture University, Mymensingh, Bangladesh.)
Screening of antibiotic residue in transported live fish and water collected from different fish markets in Mymensingh district of Bangladesh النص الكامل
2022
Md. Mehedi Hasan (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Kazi Rafiq (Department of Pharmacology, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Most. Rifat Ara Ferdous (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Md. Tarek Hossain (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Arifa Parvin Ripa (Department of Fisheries Management, Bangladesh Agriculture University, Mymensingh, Bangladesh) | Shahroz Mahean Haque (Department of Pharmacology, Bangladesh Agriculture University, Mymensingh, Bangladesh.)
Objectives: The objective of this study was to evaluate the persistence of oxytetracycline (OTC) residue in common fish species (Catla, Rui, Mrigal, and Pangas) available in local fish markets and the corresponding transport water of the Mymensingh region. Materials and Methods: Live fish and corresponding transport water samples were analyzed by thin layer chromatography (TLC) and high-performance liquid chromatography for qualitative and quantitative detection of OTC residue, respectively. A total of 240 fish samples and 60 water samples were randomly collected from three local fish markets during the summer and winter seasons. Results: OTC residues were detected in 18 samples (13 fish and 5 water samples) in the summer and 8 samples (only fish samples) in the winter. The overall percentage of antibiotic residue positive in fish samples was 5.42%, and in water samples, it was 8.33%. In fish, OTC concentrations of TLC-positive samples ranged from 34.7 to 56.85 parts per billion (ppb) in Catla, 23.45–35.37 in Rui, 11.02–26.80 in Mrigal, and 10.80–77.55 in Pangas during summer. The concentrations were 18.5 ppb in Catla, 15–16.09 in Rui, 10–14.63 in Mrigal, and 21.02–40.11 in Pangas during the win¬ter season. On the other hand, the range of OTC concentrations of TLC-positive samples for water was 12.9–59.18 ppb during summer and below the detection level during winter. The highest prevalence of antibiotic residues among fish samples was found in Pangas (16.67%). The highest percentage of samples (15% in the fish sample and 30% in the water sample) found to be positive were collected from Mechua Bazar. The comparison between the summer and winter seasons showed that the percentage of positive antibiotic residue in the summer season (10.38% for fish and 16.67% for water) is higher than that of the winter season (6.67% for fish samples only). This variation indicates that fish transporters use more antibiotics during the summer than in the winter season. The difference between the means of fish species and water samples was not statistically significant (p > 0.05). In addition, no samples exceeded the maximum residue limits (MRL) of OTC (100 ppb) in fish set by the European Commission. Conclusion: Although the concentrations of antibiotic residues in fish edible tissues are below MRL values, the presence of antibiotic residues in transported water may lead to the development of antimicrobial resistance bacteria that are detrimental to humans, animals, and aquatic animals. [J Adv Vet Anim Res 2022; 9(1.000): 104-112]
اظهر المزيد [+] اقل [-]Screening of antibiotic residue in transported live fish and water collected from different fish markets in Mymensingh district of Bangladesh النص الكامل
2022
Md. Mehedi Hasan | Kazi Rafiq | Most. Rifat Ara Ferdous | Md. Tarek Hossain | Arifa Parvin Ripa | Shahroz Mahean Haque
Objectives: The objective of this study was to evaluate the persistence of oxytetracycline (OTC) residue in common fish species (Catla, Rui, Mrigal, and Pangas) available in local fish markets and the corresponding transport water of the Mymensingh region. Materials and Methods: Live fish and corresponding transport water samples were analyzed by thin layer chromatography (TLC) and high-performance liquid chromatography for qualitative and quantitative detection of OTC residue, respectively. A total of 240 fish samples and 60 water samples were randomly collected from three local fish markets during the summer and winter seasons. Results: OTC residues were detected in 18 samples (13 fish and 5 water samples) in the summer and 8 samples (only fish samples) in the winter. The overall percentage of antibiotic residue positive in fish samples was 5.42%, and in water samples, it was 8.33%. In fish, OTC concentrations of TLC-positive samples ranged from 34.7 to 56.85 parts per billion (ppb) in Catla, 23.45–35.37 in Rui, 11.02–26.80 in Mrigal, and 10.80–77.55 in Pangas during summer. The concentrations were 18.5 ppb in Catla, 15–16.09 in Rui, 10–14.63 in Mrigal, and 21.02–40.11 in Pangas during the win¬ter season. On the other hand, the range of OTC concentrations of TLC-positive samples for water was 12.9–59.18 ppb during summer and below the detection level during winter. The highest prevalence of antibiotic residues among fish samples was found in Pangas (16.67%). The highest percentage of samples (15% in the fish sample and 30% in the water sample) found to be positive were collected from Mechua Bazar. The comparison between the summer and winter seasons showed that the percentage of positive antibiotic residue in the summer season (10.38% for fish and 16.67% for water) is higher than that of the winter season (6.67% for fish samples only). This variation indicates that fish transporters use more antibiotics during the summer than in the winter season. The difference between the means of fish species and water samples was not statistically significant (p > 0.05). In addition, no samples exceeded the maximum residue limits (MRL) of OTC (100 ppb) in fish set by the European Commission. Conclusion: Although the concentrations of antibiotic residues in fish edible tissues are below MRL values, the presence of antibiotic residues in transported water may lead to the development of antimicrobial resistance bacteria that are detrimental to humans, animals, and aquatic animals. [J Adv Vet Anim Res 2022; 9(1.000): 104-112]
اظهر المزيد [+] اقل [-]Multidrug-resistant and enterotoxigenic methicillin-resistant Staphylococcus aureus isolated from raw milk of cows at small-scale production units النص الكامل
2022
Hamza Mohamed Eid (Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt) | Heba Sayed El-Mahallawy (Department of Animal Hygiene, Zoonoses, and Animal Behaviour and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt) | Sahar Roshdi Mohammed (Head Research of Bacteriology and Chief of Bacteriology Department, Animal Health Research Institute, Dokki, Egypt) | Nehal Ezzat Yousef Mohammed (Food Inspector, Animal Health Research Institute, Damietta, Egypt) | Nada Hussein Eidaroos (Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt.)
Multidrug-resistant and enterotoxigenic methicillin-resistant Staphylococcus aureus isolated from raw milk of cows at small-scale production units النص الكامل
2022
Hamza Mohamed Eid (Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt) | Heba Sayed El-Mahallawy (Department of Animal Hygiene, Zoonoses, and Animal Behaviour and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt) | Sahar Roshdi Mohammed (Head Research of Bacteriology and Chief of Bacteriology Department, Animal Health Research Institute, Dokki, Egypt) | Nehal Ezzat Yousef Mohammed (Food Inspector, Animal Health Research Institute, Damietta, Egypt) | Nada Hussein Eidaroos (Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt.)
Objective: Staphylococcus aureus (S. aureus) has evolved as one of the most significant bacteria causing food poisoning outbreaks worldwide. This study was carried out to investigate the prevalence, antibiotic sensitivity, virulence, and enterotoxin production of S. aureus in raw milk of cow from small-scale production units and house-raised animals in Damietta governorate, Egypt. Material and Methods: The samples were examined bacteriologically, and antimicrobial sensitivity testing was carried out. Moreover, isolates were characterized by the molecular detection of antimicrobial resistance, virulence, and enterotoxin genes. Results: Out of 300 milk samples examined, S. aureus was isolated from 50 samples (16.7%). Antibiotic sensitivity testing revealed that isolates were resistant to β-lactams (32%), tetracycline (16%), and norfloxacin (16%); however, they showed considerable sensitivity to ceftaroline and amikacin (72%). Multidrug-resistance (MDR) has been observed in eight isolates (16%), with a MDR index (0.5) in all of them. Of the total S. aureus isolates obtained, methicillin-resistant S. aureus (MRSA) has been confirmed molecularly in 16/50 (32%) and was found to carry mecA and coa genes, while virulence genes; hlg (11/16, 68.75%) and tsst (6/16, 37.5%) were amplified at a lower percentage, and they showed a significant moderate negative correlation (r = −0.59, p-value > 0.05). Antibiotic resistance genes have been detected in resistant isolates relevant to their phenotypic resistance: blaZ (100%), tetK (50%), and norA (50%). Fifty percent of MRSA isolates carried the seb enterotoxin gene. Conclusion: High detection rate of MRSA and MDR isolates from milk necessitates the prompt implementation of efficient antimicrobial stewardship guidelines, especially at neglected small-scale production units. [J Adv Vet Anim Res 2022; 9(1.000): 113-121]
اظهر المزيد [+] اقل [-]Multidrug-resistant and enterotoxigenic methicillin-resistant Staphylococcus aureus isolated from raw milk of cows at small-scale production units النص الكامل
2022
Hamza Mohamed Eid | Heba Sayed El-Mahallawy | Sahar Roshdi Mohammed | Nehal Ezzat Yousef Mohammed | Nada Hussein Eidaroos
Objective: Staphylococcus aureus (S. aureus) has evolved as one of the most significant bacteria causing food poisoning outbreaks worldwide. This study was carried out to investigate the prevalence, antibiotic sensitivity, virulence, and enterotoxin production of S. aureus in raw milk of cow from small-scale production units and house-raised animals in Damietta governorate, Egypt. Material and Methods: The samples were examined bacteriologically, and antimicrobial sensitivity testing was carried out. Moreover, isolates were characterized by the molecular detection of antimicrobial resistance, virulence, and enterotoxin genes. Results: Out of 300 milk samples examined, S. aureus was isolated from 50 samples (16.7%). Antibiotic sensitivity testing revealed that isolates were resistant to β-lactams (32%), tetracycline (16%), and norfloxacin (16%); however, they showed considerable sensitivity to ceftaroline and amikacin (72%). Multidrug-resistance (MDR) has been observed in eight isolates (16%), with a MDR index (0.5) in all of them. Of the total S. aureus isolates obtained, methicillin-resistant S. aureus (MRSA) has been confirmed molecularly in 16/50 (32%) and was found to carry mecA and coa genes, while virulence genes; hlg (11/16, 68.75%) and tsst (6/16, 37.5%) were amplified at a lower percentage, and they showed a significant moderate negative correlation (r = −0.59, p-value > 0.05). Antibiotic resistance genes have been detected in resistant isolates relevant to their phenotypic resistance: blaZ (100%), tetK (50%), and norA (50%). Fifty percent of MRSA isolates carried the seb enterotoxin gene. Conclusion: High detection rate of MRSA and MDR isolates from milk necessitates the prompt implementation of efficient antimicrobial stewardship guidelines, especially at neglected small-scale production units. [J Adv Vet Anim Res 2022; 9(1.000): 113-121]
اظهر المزيد [+] اقل [-]Evaluation of broiler meat in experimental listeriosis النص الكامل
2022
Iryna Borovuk (Faculty of Veterinary Medicine, Dnipro State Agrarian and Economic University, Dnipro, Ukraine) | Nadiia Zazharska (Faculty of Veterinary Medicine, Dnipro State Agrarian and Economic University, Dnipro, Ukraine.)
Evaluation of broiler meat in experimental listeriosis النص الكامل
2022
Iryna Borovuk (Faculty of Veterinary Medicine, Dnipro State Agrarian and Economic University, Dnipro, Ukraine) | Nadiia Zazharska (Faculty of Veterinary Medicine, Dnipro State Agrarian and Economic University, Dnipro, Ukraine.)
Objective: The work aimed to assess the safety and quality of broiler meat in experimental liste¬riosis changes in storage. Materials and Methods: Ross Cobb 500 chickens (40) were divided into 4 groups of 10 animals each. Chickens from three experimental groups were infected by Listeria innocua, Listeria ivanovii, and Listeria monocytogenes. Meat samples were stored for 5 days at 0°C–4°C. Meat samples were kept in the refrigerator for 3, 4, and 5 days. Microbiological and laboratory indicators of meat freshness were found on these days as well. Results: After the slaughter of chickens with experimental listeriosis, pathological changes in mus¬cles and organs were noted against the background of fattening carcasses with a high slaughter yield. By bacterial contamination, 1 day after slaughter, the meat of chickens of the experimental groups (L. innocua, L. ivanovii, and L. monocytogenes) outperformed the control group by almost 1.9, 13.9, and 24.7 times, respectively (p < 0.05). The same trend is observed for the third, fourth, and fifth days of meat storage. To keep chicken meat fresh for 5 days, only samples from the con¬trol group stayed fresh. Conclusion: According to the total bacterial contamination, the meat of chickens of the groups L. innocua and L. ivanovii was dangerous to human health after 5 and 4 days of storage, respec¬tively. From the first day after the chickens were killed, the meat of chickens that had been infected with L. monocytogenes did not meet the requirements (up to 100 CFU/gm) and was not safe to store or eat. [J Adv Vet Anim Res 2022; 9(1.000): 155-165]
اظهر المزيد [+] اقل [-]Evaluation of broiler meat in experimental listeriosis النص الكامل
2022
Iryna Borovuk | Nadiia Zazharska
Objective: The work aimed to assess the safety and quality of broiler meat in experimental liste¬riosis changes in storage. Materials and Methods: Ross Cobb 500 chickens (40) were divided into 4 groups of 10 animals each. Chickens from three experimental groups were infected by Listeria innocua, Listeria ivanovii, and Listeria monocytogenes. Meat samples were stored for 5 days at 0°C–4°C. Meat samples were kept in the refrigerator for 3, 4, and 5 days. Microbiological and laboratory indicators of meat freshness were found on these days as well. Results: After the slaughter of chickens with experimental listeriosis, pathological changes in mus¬cles and organs were noted against the background of fattening carcasses with a high slaughter yield. By bacterial contamination, 1 day after slaughter, the meat of chickens of the experimental groups (L. innocua, L. ivanovii, and L. monocytogenes) outperformed the control group by almost 1.9, 13.9, and 24.7 times, respectively (p < 0.05). The same trend is observed for the third, fourth, and fifth days of meat storage. To keep chicken meat fresh for 5 days, only samples from the con¬trol group stayed fresh. Conclusion: According to the total bacterial contamination, the meat of chickens of the groups L. innocua and L. ivanovii was dangerous to human health after 5 and 4 days of storage, respec¬tively. From the first day after the chickens were killed, the meat of chickens that had been infected with L. monocytogenes did not meet the requirements (up to 100 CFU/gm) and was not safe to store or eat. [J Adv Vet Anim Res 2022; 9(1.000): 155-165]
اظهر المزيد [+] اقل [-]Evaluation of the in vitro and in vivo inhibitory effects of Artemisia herba-alba against the growth of piroplasm parasites النص الكامل
2022
Rasha Eltaysh | Mohamed Abdo Rizk | Shimaa Abd El-Salam El-Sayed | Khaled Abouelnasr | Abdelnaser Ahmed Abdallah | Ikuo Igarashi
Evaluation of the in vitro and in vivo inhibitory effects of Artemisia herba-alba against the growth of piroplasm parasites النص الكامل
2022
Rasha Eltaysh | Mohamed Abdo Rizk | Shimaa Abd El-Salam El-Sayed | Khaled Abouelnasr | Abdelnaser Ahmed Abdallah | Ikuo Igarashi
Objective: The effect of Artemisia herba-alba methanolic extract monotherapy and combination therapies on the in vitro growth of several Babesia and Theileria parasites in vitro and mice was investigated in this study. Materials and Methods: Fluorescence assay using SYBR Green I stain was used to evaluate the antibabesial efficacy inhibitory of A. herba-alba either in vitro or in vivo. Hematological parameters in the treated mice were analyzed using a Celltac MEK-6450 computerized hematology analyzer. Results: Artemisia herba-alba reduced the growth of Babesia bovis, Babesia bigemina, Babesia divergens, Theileria equi, and Babesia caballi in vitro in a dose-dependent manner. The in vitro inhibitory impact of A. herba-alba on B. divergens and B. caballi cultures was amplified when combined with either diminazene aceturate (DA). In B. microti-infected mice, a combination therapy consisting of A. herba-alba and a low DA dose inhibited B. microti growth significantly (p < 0.05) better than treatment with 25 mg kg−1 DA. Conclusions: These data show that A. herba-alba, when paired with a modest DA dose, could be a promising medicinal plant for babesiosis treatment. [J Adv Vet Anim Res 2022; 9(2.000): 267-274]
اظهر المزيد [+] اقل [-]Evaluation of the in vitro and in vivo inhibitory effects of Artemisia herba-alba against the growth of piroplasm parasites النص الكامل
2022
Rasha Eltaysh (National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan. & Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt) | Mohamed Abdo Rizk (National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan. & Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt) | Shimaa Abd El-Salam El-Sayed (National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan. & Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt) | Khaled Abouelnasr (Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt) | Abdelnaser Ahmed Abdallah (Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt) | Ikuo Igarashi (National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.)
Objective: The effect of Artemisia herba-alba methanolic extract monotherapy and combination therapies on the in vitro growth of several Babesia and Theileria parasites in vitro and mice was investigated in this study. Materials and Methods: Fluorescence assay using SYBR Green I stain was used to evaluate the antibabesial efficacy inhibitory of A. herba-alba either in vitro or in vivo. Hematological parameters in the treated mice were analyzed using a Celltac MEK-6450 computerized hematology analyzer. Results: Artemisia herba-alba reduced the growth of Babesia bovis, Babesia bigemina, Babesia divergens, Theileria equi, and Babesia caballi in vitro in a dose-dependent manner. The in vitro inhibitory impact of A. herba-alba on B. divergens and B. caballi cultures was amplified when combined with either diminazene aceturate (DA). In B. microti-infected mice, a combination therapy consisting of A. herba-alba and a low DA dose inhibited B. microti growth significantly (p < 0.05) better than treatment with 25 mg kg−1 DA. Conclusions: These data show that A. herba-alba, when paired with a modest DA dose, could be a promising medicinal plant for babesiosis treatment. [J Adv Vet Anim Res 2022; 9(2.000): 267-274]
اظهر المزيد [+] اقل [-]Porcine circovirus type 2 and its associated diseases in southwestern Nigeria: Farmers' perception and level of awareness النص الكامل
2022
Oluwawemimo Oluseun Adebowale | Olufemi Samuel Amoo | Kayode Olayinka Afolabi | Abimbola Adetokunbo Oloye
Porcine circovirus type 2 and its associated diseases in southwestern Nigeria: Farmers' perception and level of awareness النص الكامل
2022
Oluwawemimo Oluseun Adebowale | Olufemi Samuel Amoo | Kayode Olayinka Afolabi | Abimbola Adetokunbo Oloye
Objective: Porcine circovirus type 2 (PCV2) is one of the most important causative agents of swine diseases that pose a global economic threat. Presently, there is little or no information on the perception and awareness of PCV2 and its associated effects among pig farmers in Nigeria. Therefore, this research was carried out to describe pig farmers' views, awareness, and likely impact of PCV2 and its associated postweaning multisystemic wasting syndrome (PMWS) on pig production in the southwestern region of Nigeria. Materials and Methods: A cross-sectional survey of pig farmers in Oyo and Ogun states, Southwest Nigeria, was carried out with the help of a self-administered questionnaire. Results: A total of 111 farms out of the 385 required took part in the study, resulting in a total response rate of 28.8%. 89 (79.2%, 95% CI = 70.8–85.8) pig farmers who participated were unaware of PCV2, while 46 (41.4%, 95% CI = 32.7–50.7) had heard about PMWS. The level of awareness was generally poor, with an average score of 1.43 (SD ± 1.25; 23.9%). Only 23% (25/111) of the participants had a high level of awareness. To promote awareness about PCV2/PMWS, participants' most preferred sources of information were seminars, extension services (especially by veterinary and agricultural extension officers), social media (WhatsApp and YouTube), and mobile telephone (through calls or text messages). Conclusions: The present study showed a gap in the level of farmers' awareness about PCV2/ PMWS, and to bridge the gap, more scientific-based evidence is needed to promote targeted educational programs and policy formulations. Also, with the dearth of information about PCV2, it is necessary to determine its prevalence and the characteristics of the virus possibly circulating within the swine herds in Nigeria. [J Adv Vet Anim Res 2022; 9(2.000): 203-210]
اظهر المزيد [+] اقل [-]Porcine circovirus type 2 and its associated diseases in southwestern Nigeria: Farmers' perception and level of awareness النص الكامل
2022
Oluwawemimo Oluseun Adebowale (Department of Veterinary Public Health and Preventive Medicine, Federal University of Agriculture, Abeokuta, Nigeria) | Olufemi Samuel Amoo (Centre for Human Virology and Genomics Research, Nigerian Institute of Medical Research NIMR, Yaba, Nigeria) | Kayode Olayinka Afolabi (Molecular Epidemiology and Public Health Research Group (MEPHREG), Department of Biological Sciences, Anchor University, Nigeria. & Anchor University Center for Global Health (AUCGH), Nigeria) | Abimbola Adetokunbo Oloye (Department of Veterinary Surgery and Theriogenology, Federal University Agriculture, Abeokuta, Nigeria.)
Objective: Porcine circovirus type 2 (PCV2) is one of the most important causative agents of swine diseases that pose a global economic threat. Presently, there is little or no information on the perception and awareness of PCV2 and its associated effects among pig farmers in Nigeria. Therefore, this research was carried out to describe pig farmers' views, awareness, and likely impact of PCV2 and its associated postweaning multisystemic wasting syndrome (PMWS) on pig production in the southwestern region of Nigeria. Materials and Methods: A cross-sectional survey of pig farmers in Oyo and Ogun states, Southwest Nigeria, was carried out with the help of a self-administered questionnaire. Results: A total of 111 farms out of the 385 required took part in the study, resulting in a total response rate of 28.8%. 89 (79.2%, 95% CI = 70.8–85.8) pig farmers who participated were unaware of PCV2, while 46 (41.4%, 95% CI = 32.7–50.7) had heard about PMWS. The level of awareness was generally poor, with an average score of 1.43 (SD ± 1.25; 23.9%). Only 23% (25/111) of the participants had a high level of awareness. To promote awareness about PCV2/PMWS, participants' most preferred sources of information were seminars, extension services (especially by veterinary and agricultural extension officers), social media (WhatsApp and YouTube), and mobile telephone (through calls or text messages). Conclusions: The present study showed a gap in the level of farmers' awareness about PCV2/ PMWS, and to bridge the gap, more scientific-based evidence is needed to promote targeted educational programs and policy formulations. Also, with the dearth of information about PCV2, it is necessary to determine its prevalence and the characteristics of the virus possibly circulating within the swine herds in Nigeria. [J Adv Vet Anim Res 2022; 9(2.000): 203-210]
اظهر المزيد [+] اقل [-]Acaricide resistance of Rhipicephalus decoloratus ticks collected from communal grazing cattle in South Africa النص الكامل
2022
Mandla Yawa | Nkululeko Nyangiwe | Ishmael Festus Jaja | Munyaradzi Christopher Marufu | Charles T. Kadzere
Acaricide resistance of Rhipicephalus decoloratus ticks collected from communal grazing cattle in South Africa النص الكامل
2022
Mandla Yawa | Nkululeko Nyangiwe | Ishmael Festus Jaja | Munyaradzi Christopher Marufu | Charles T. Kadzere
Objective: This study aimed to determine acaricide resistance in Rhipicephalus decoloratus ticks collected from grazing cattle between November 2018 and May 2019 in Elundini, Senqu, and Walter Sisulu Local Municipalities in the northeastern region of the Eastern Cape Province. Materials and Methods: A sample of 20–30 adult engorged female R. decoloratus ticks were collected from at least 10 randomly selected cattle (highly tick-infested) at each dip tank and placed into the labelled plastic collection bottles containing absorbent paper and with a perforated lid at a constant room temperature of ±28°C and >70% relative humidity until resistance testing commenced. The Shaw larval immersion test method was used to determine R. decoloratus larvae resistance to various acaricide concentration levels [amidines, organophosphate (OP), and synthetic pyrethroids (SPs)]. Results: This study found that most ticks were susceptible to exposure to different acaricide field concentrations of amidines (49% at 250 ppm), OPs (33% and 47% at 300 ppm and 500 ppm, respectively), and SPs (44% and 23% at 150 ppm and 300 ppm, respectively). The resistance test¬ing results showed no resistance to amidines at any localities and no resistance to OP in the Senqu region. However, resistance development of the larvae to amines, OPs, and SPs was extensively observed in Senqu (18%, 6%, and 7%), Elundini (15%, 15%, and 17%), and Walter Sisulu (13%, 19%, and 9%) regions, respectively. Conclusions: The larvae's resistance is a cause for worry. Hence, the continuous monitoring of tick resistance to commonly used acaricides will help mitigate widespread acaricidal resistance and sustain livestock productivity. [J Adv Vet Anim Res 2022; 9(1.000): 33-41]
اظهر المزيد [+] اقل [-]Acaricide resistance of Rhipicephalus decoloratus ticks collected from communal grazing cattle in South Africa النص الكامل
2022
Mandla Yawa (Department of Livestock and Pasture Science, University of Fort Hare, Alice, South Africa) | Nkululeko Nyangiwe (Dohne Agricultural Development Institute, Stutterheim, South Africa, & Department of Agriculture and Animal Health, University of South Africa, Roodepoort Johannesburg 1710, South Africa) | Ishmael Festus Jaja (Department of Livestock and Pasture Science, University of Fort Hare, Alice, South Africa) | Munyaradzi Christopher Marufu (Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria, South Africa) | Charles T. Kadzere (Dohne Agricultural Development Institute, Stutterheim, South Africa.)
Objective: This study aimed to determine acaricide resistance in Rhipicephalus decoloratus ticks collected from grazing cattle between November 2018 and May 2019 in Elundini, Senqu, and Walter Sisulu Local Municipalities in the northeastern region of the Eastern Cape Province. Materials and Methods: A sample of 20–30 adult engorged female R. decoloratus ticks were collected from at least 10 randomly selected cattle (highly tick-infested) at each dip tank and placed into the labelled plastic collection bottles containing absorbent paper and with a perforated lid at a constant room temperature of ±28°C and >70% relative humidity until resistance testing commenced. The Shaw larval immersion test method was used to determine R. decoloratus larvae resistance to various acaricide concentration levels [amidines, organophosphate (OP), and synthetic pyrethroids (SPs)]. Results: This study found that most ticks were susceptible to exposure to different acaricide field concentrations of amidines (49% at 250 ppm), OPs (33% and 47% at 300 ppm and 500 ppm, respectively), and SPs (44% and 23% at 150 ppm and 300 ppm, respectively). The resistance test¬ing results showed no resistance to amidines at any localities and no resistance to OP in the Senqu region. However, resistance development of the larvae to amines, OPs, and SPs was extensively observed in Senqu (18%, 6%, and 7%), Elundini (15%, 15%, and 17%), and Walter Sisulu (13%, 19%, and 9%) regions, respectively. Conclusions: The larvae's resistance is a cause for worry. Hence, the continuous monitoring of tick resistance to commonly used acaricides will help mitigate widespread acaricidal resistance and sustain livestock productivity. [J Adv Vet Anim Res 2022; 9(1.000): 33-41]
اظهر المزيد [+] اقل [-]Anticoccidial effects of Tinospora rumphii extract in naturally infected goats النص الكامل
2022
Pearl Muyco Saladino | Elsa Amarille Gonzaga | Loveille Jun Amarille Gonzaga
Anticoccidial effects of Tinospora rumphii extract in naturally infected goats النص الكامل
2022
Pearl Muyco Saladino | Elsa Amarille Gonzaga | Loveille Jun Amarille Gonzaga
Objective: This study aimed to determine the anticoccidial potential of Tinospora rumphii ethan¬olic stem extract, resulting in an effective reduction in oocysts per gram counts of Eimeria species in goats in comparison to the commercial coccidiostat toltrazuril. Materials and Methods: Eighteen goats that were naturally infected with coccidia were identified as experimental animals. The experimental animals were grouped and were administered a single dose of T. rumphii extract at concentrations of 300, 600, 1,000, and 2,000 mg extract/kg body weight. The fecal samples were collected before treatment, during the first treatment, and every week thereafter for 28 days posttreatment. Fecal examination was carried out using a modified McMaster technique to determine the oocysts per gram of feces, and the mean efficacies of the extracts were calculated. Results: Stem extracts of T. rumphii were able to lower the oocysts per gram count than pre¬treatment for all concentrations, but the efficacy, in general, was still lower than toltrazuril. A significant difference existed in the efficacy of the extracts among the treatments on day 14. Administering 1,000 mg/kg extract resulted in the highest efficacy rate (95.25%) at 14 days post¬treatment and was comparable to that of toltrazuril (89.89%). Conclusion: The results show that the T. rumphii stem extract has the potential to reduce the Eimeria species oocysts per gram counts of naturally infected goats. [J Adv Vet Anim Res 2022; 9(1.000): 8-12]
اظهر المزيد [+] اقل [-]Anticoccidial effects of Tinospora rumphii extract in naturally infected goats النص الكامل
2022
Pearl Muyco Saladino (College of Veterinary Medicine, University of Southern Mindanao, Kabacan, Cotabato, Philippines) | Elsa Amarille Gonzaga (Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of Southern Mindanao, Kabacan, Cotabato, Philippines) | Loveille Jun Amarille Gonzaga (Department of Chemistry, College of Science and Mathematics, University of Southern Mindanao, Kabacan, Cotabato, Philippines.)
Objective: This study aimed to determine the anticoccidial potential of Tinospora rumphii ethan¬olic stem extract, resulting in an effective reduction in oocysts per gram counts of Eimeria species in goats in comparison to the commercial coccidiostat toltrazuril. Materials and Methods: Eighteen goats that were naturally infected with coccidia were identified as experimental animals. The experimental animals were grouped and were administered a single dose of T. rumphii extract at concentrations of 300, 600, 1,000, and 2,000 mg extract/kg body weight. The fecal samples were collected before treatment, during the first treatment, and every week thereafter for 28 days posttreatment. Fecal examination was carried out using a modified McMaster technique to determine the oocysts per gram of feces, and the mean efficacies of the extracts were calculated. Results: Stem extracts of T. rumphii were able to lower the oocysts per gram count than pre¬treatment for all concentrations, but the efficacy, in general, was still lower than toltrazuril. A significant difference existed in the efficacy of the extracts among the treatments on day 14. Administering 1,000 mg/kg extract resulted in the highest efficacy rate (95.25%) at 14 days post¬treatment and was comparable to that of toltrazuril (89.89%). Conclusion: The results show that the T. rumphii stem extract has the potential to reduce the Eimeria species oocysts per gram counts of naturally infected goats. [J Adv Vet Anim Res 2022; 9(1.000): 8-12]
اظهر المزيد [+] اقل [-]Catabolic profiling of selective enzymes in the saccharification of non-food lignocellulose parts of biomass into functional edible sugars and bioenergy: An in silico bioprospecting النص الكامل
2022
Parag Kumar Paul | Salauddin Al Azad | Mohammad Habibur Rahman | Mithila Farjana | Muhammad Ramiz Uddin | Dipta Dey | Shafi Mahmud | Tanzila Ismail Ema | Partha Biswas | Maliha Anjum | Ozifatun Jannat Akhi | Shahlaa Zernaz Ahmed
Catabolic profiling of selective enzymes in the saccharification of non-food lignocellulose parts of biomass into functional edible sugars and bioenergy: An in silico bioprospecting النص الكامل
2022
Parag Kumar Paul | Salauddin Al Azad | Mohammad Habibur Rahman | Mithila Farjana | Muhammad Ramiz Uddin | Dipta Dey | Shafi Mahmud | Tanzila Ismail Ema | Partha Biswas | Maliha Anjum | Ozifatun Jannat Akhi | Shahlaa Zernaz Ahmed
Objectives: The research aims to analyze the catabolic strength of different hydrolytic enzymes in assessing the biological conversion potential of lignocellulose parts of agricultural biomass wastes into functional edible sugars and biofuels. Materials and Methods: The enzymes' hydrolytic properties—versatile peroxidase, manganese peroxidase, and lignin peroxidase were used to identify their complexing strength with the lignin substrate, whereas endoglucanase cel12A, acidocaldarius cellulase, and Melanocarpus albomyces endoglucanase were tested on the cellulose gel substrate. Because the biodegradation properties are heavily influenced by the "enzyme-substrate complexing energy level," proper molecular optimization and energy minimization of the enzymes and substrates were carried out, as well as the identification of the enzyme's active sites prior to complexing. comprehensive molecular dynamic simulation was run to study their—alpha carbon, root-mean-square deviation (Å), molecular surface area (Å2), root-mean-square fluctuation (Å), radius of gyration (nm), hydrogen bonds with hydrophobic interactions, and solvent accessible surface area (Å2) values for 50 ns. The simulated data mining was conducted using advanced programming algorithms to establish the final enzyme-substrate complexing strength in binding and catalysis. Results: Among the lignin-degrading enzymes, versatile peroxidase shows promising catalytic activity with the best docking pose and significant values in all the dynamic simulation parameters. Similarly, Melanocarpus albomyces endoglucanase shows the best activity in all aspects of molecular docking and dynamics among the cellulose-degrading enzymes. Conclusion: The lignin content of biomass wastes can be degraded into cellulose and hemicellulose using lignin-degrading enzymes. The cellulose can be further degraded into glucose and xylose sugars following the cellulose-degrading enzyme activity. These sugars can be further degraded into biofuel through anaerobic fermentation. Systematic bioconversion of the lignocellulosic components can ensure sustainable biomass management, creating an alternative food and energy source for human beings to face the challenges of global hunger where the enzymes can pave the way. [J Adv Vet Anim Res 2022; 9(1.000): 19-32]
اظهر المزيد [+] اقل [-]Catabolic profiling of selective enzymes in the saccharification of non-food lignocellulose parts of biomass into functional edible sugars and bioenergy: An in silico bioprospecting النص الكامل
2022
Parag Kumar Paul (Department of Electrical and Electronic Engineering, United International University, Dhaka, Bangladesh) | Salauddin Al Azad (Fermentation Engineering Major, School of Biotechnology, Jiangnan University, Wuxi, China) | Mohammad Habibur Rahman (Vaccinology Lab, Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh) | Mithila Farjana (Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK, USA) | Muhammad Ramiz Uddin (Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK, USA) | Dipta Dey (Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh) | Shafi Mahmud (Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, Bangladesh) | Tanzila Ismail Ema (Department of Biochemistry and Microbiology, North South University, Dhaka, Bangladesh) | Partha Biswas (Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, Bangladesh) | Maliha Anjum (Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, Bangladesh) | Ozifatun Jannat Akhi (Department of Computer Science and Engineering, Mymensingh Engineering College, Mymensingh, Bangladesh) | Shahlaa Zernaz Ahmed (Department of Biochemistry and Microbiology, North South University, Dhaka, Bangladesh.)
Objectives: The research aims to analyze the catabolic strength of different hydrolytic enzymes in assessing the biological conversion potential of lignocellulose parts of agricultural biomass wastes into functional edible sugars and biofuels. Materials and Methods: The enzymes' hydrolytic properties—versatile peroxidase, manganese peroxidase, and lignin peroxidase were used to identify their complexing strength with the lignin substrate, whereas endoglucanase cel12A, acidocaldarius cellulase, and Melanocarpus albomyces endoglucanase were tested on the cellulose gel substrate. Because the biodegradation properties are heavily influenced by the "enzyme-substrate complexing energy level," proper molecular optimization and energy minimization of the enzymes and substrates were carried out, as well as the identification of the enzyme's active sites prior to complexing. comprehensive molecular dynamic simulation was run to study their—alpha carbon, root-mean-square deviation (Å), molecular surface area (Å2), root-mean-square fluctuation (Å), radius of gyration (nm), hydrogen bonds with hydrophobic interactions, and solvent accessible surface area (Å2) values for 50 ns. The simulated data mining was conducted using advanced programming algorithms to establish the final enzyme-substrate complexing strength in binding and catalysis. Results: Among the lignin-degrading enzymes, versatile peroxidase shows promising catalytic activity with the best docking pose and significant values in all the dynamic simulation parameters. Similarly, Melanocarpus albomyces endoglucanase shows the best activity in all aspects of molecular docking and dynamics among the cellulose-degrading enzymes. Conclusion: The lignin content of biomass wastes can be degraded into cellulose and hemicellulose using lignin-degrading enzymes. The cellulose can be further degraded into glucose and xylose sugars following the cellulose-degrading enzyme activity. These sugars can be further degraded into biofuel through anaerobic fermentation. Systematic bioconversion of the lignocellulosic components can ensure sustainable biomass management, creating an alternative food and energy source for human beings to face the challenges of global hunger where the enzymes can pave the way. [J Adv Vet Anim Res 2022; 9(1.000): 19-32]
اظهر المزيد [+] اقل [-]Communal sheep farmer's knowledge and attitudes on the incidence of gastrointestinal parasites in the Eastern Cape, South Africa النص الكامل
2022
Mlungisi Selby Jansen | Nkululeko Nyangiwe | Yanga Simamkele Diniso | Mandla Yawa | Thando Conference Mpendulo | Mzwethu Dastile | Ishmael Festus Jaja
Objective: Gastrointestinal parasites (GIPs) negatively impact small ruminant production and pro¬ductivity nationwide, particularly in tropical and sub-tropic regions. Amongst other nematodes, Haemonchus contortus, Trichostrongylus colubriformis, and Teladorsagia circumcincta are the most common species in small ruminants animals. Thus, this study aimed to investigate communal sheep farmer's knowledge and attitudes toward GIPs in the Eastern Cape Province, South Africa. Materials and Methods: A cross-sectional survey was conducted between September and November 2018 from three agro-ecological zones, namely, arid region, semi-humid, and humid. All data from this study were analysed with the Statistical Analysis System. Results: Of the total of 107 farmers who participated in the study, 69% were males, and 38% were females. Most livestock owners (85%) were aged >46 years old across all the study areas. The majority of farmers (83%) perceived that their animals are susceptible to wireworm (H. contortus) during the hot-wet season, followed by the hot-dry season (14%), with relatively low during the cold season (2%). Most farmers (85%) interviewed revealed that lambs are more exposed to para¬sitic infection, than mature sheep (15%) across all agro-ecological zones. An insignificant number of farmers (8%) with knowledge about GIPs life cycle and its biology (92%) across all agro-eco¬logical zones. This study reveals a significant increase in the occurrence of GIPs over the past few years across all agro-ecological, with largely (67%) attributed to the resistance of the strain to deworming remedies and changes in climatic weather patterns (33%). The farming experience was strongly (p < 0.05) associated with the farmer's gender and age. Helminths were reported significantly higher (p < 0.05) in humid zones than in other agro-ecological zones. Conclusions: This study concludes that most farmers perceived lambs as more susceptible to GIPs than old sheep. Therefore, farmers should be enlightened about the infection and transmission dynamics of the GIPs to develop appropriate control measures against worm infection to boost sheep production in the study area. It was also suggested that farmers should adhere to remedial instruction and adopt rotational deworming programs to avoid anthelmintic resistance. [J Adv Vet Anim Res 2022; 9(3.000): 351-358]
اظهر المزيد [+] اقل [-]