خيارات البحث
النتائج 141 - 150 من 904
Aerobic bacteria isolated from internal lesions of camels at Tambool slaughterhouse النص الكامل
2017
Hamza, Ibtihal Ibrahim | Shuaib, Yassir Adam | Suliman, Siham Elias | Abdalla, Mohamed Abdelsalam
Objective: This cross-sectional study was conducted from January to June 2013 to estimate the prevalence of internal lesions in slaughtered camels at Tambool slaughterhouse and to identify the aerobic bacteria colonizing these lesions.Material and methods: A total of 280 carcasses of camels were thoroughly inspected during post-mortem examination and samples were collected from internal lesions and cultured onto different culture media. Isolated bacteria had undergone testing of several biochemical activities for species identification and susceptibility to certain antibiotics.Results: Internal lesions were detected in 25.0% (95% CI of ±5.07) of the carcasses and were observed in the lungs, liver and heart. Statistical association analyses showed that origin, sex, breed, and body condition were related to detection of lesions. A number of 179 isolates of aerobic bacteria belonging to 9 genera were grown and included Staphylococcus species (32.0%), Escherichia coli (26.0%), Streptococcus species (18.0%), Corynebacterium species (5.0%), and Bacillus species, Salmonella species, Pseudomonus species, and Klebsiella species; each of them 4.0%, and Shigella species (2%). Drug susceptibility testing showed that chloramphenicol was the most effective antibiotic against Staphylococcus species, Corynebacterium species, and Bacillus species, while penicillin g 10 was more effective against Streptococcus species. Ciprofloxacin 5 µg and ampicllin/sulpactum 20 µg were effective against E. coli, Salmonella species, Klebsiella species, Shigella species, and Pseudomonas species.Conclusion: It can be concluded that internal lesions are prevalent in camels slaughtered at Tambool slaughterhouse and many species of bacteria were colonizing these lesions, hence, evaluating the economic magnitude of internal lesions resulting in partial and/or total condemnation of organs is warranted.http://doi.org/10.5455/javar.2017.d185
اظهر المزيد [+] اقل [-]Prevalence of infectious diseases in Sonali chickens at Bogra Sadar Upazila, Bogra, Bangladesh النص الكامل
2017
Talukdar, Md. Lipon | Zuhra, Fatema Tuz | Islam, K. M. Ehasanul | Ahmed, Md. Selim
Prevalence of infectious diseases in Sonali chickens at Bogra Sadar Upazila, Bogra, Bangladesh النص الكامل
2017
Talukdar, Md. Lipon | Zuhra, Fatema Tuz | Islam, K. M. Ehasanul | Ahmed, Md. Selim
Objective: The study was conducted to determine the prevalence of infectious diseases in Sonali chickens at Bogra Sadar Upazila, Bogra, Bangladesh.Materials and methods: A total of 258 sick and dead Sonali chickens were examined for the diagnosis of different infectious diseases based on history, clinical findings and postmortem lesions of dead and sacrificed birds.Results: Infectious Bursal disease (IBD) was recorded in 14.72% (n=38/258) cases. Similarly, Newcastle disease (ND), Coccidiosis, Colibacillosis and Mycoplasmosis were recorded in 11.24% (n=29/258), 13.95% (n=36/258), 14.72% (n=38/258), 12.79% (n=33/258) cases, respectively. Mixed infection of IBD, ND and Coccidiosis found in 16.67% (n=43/258) birds. On the other hand, mixed infection of IBD, ND and colibacillosis was recorded in 15.89% (n=41/258) cases.Conclusion: It is concluded that several infectious diseases are commonly present in Sonali chicken in the study area of Bangladesh. Mixed infections are more prevalent as compared to single infection. Proper hygienic management and appropriate vaccination should be taken in consideration for effective control the diseases. Further microbiological and molecular diagnoses are suggested for detail studies of these diseases and their pathogens. http://doi.org/10.5455/javar.2017.d188
اظهر المزيد [+] اقل [-]Prevalence of infectious diseases in Sonali chickens at Bogra Sadar Upazila, Bogra, Bangladesh النص الكامل
2017
Md. Lipon Talukdar | Fatema Tuz Zuhra | K. M. Ehasanul Islam | Md. Selim Ahmed
Objective: The study was conducted to determine the prevalence of infectious diseases in Sonali chickens at Bogra Sadar Upazila, Bogra, Bangladesh. Materials and methods: A total of 258 sick and dead Sonali chickens were examined for the diagnosis of different infectious diseases based on history, clinical findings and postmortem lesions of dead and sacrificed birds. Results: Infectious Bursal disease (IBD) was recorded in 14.72% (n=38/258) cases. Similarly, Newcastle disease (ND), Coccidiosis, Colibacillosis and Mycoplasmosis were recorded in 11.24% (n=29/258), 13.95% (n=36/258), 14.72% (n=38/258), 12.79% (n=33/258) cases, respectively. Mixed infection of IBD, ND and Coccidiosis found in 16.67% (n=43/258) birds. On the other hand, mixed infection of IBD, ND and colibacillosis was recorded in 15.89% (n=41/258) cases. Conclusion: It is concluded that several infectious diseases are commonly present in Sonali chicken in the study area of Bangladesh. Mixed infections are more prevalent as compared to single infection. Proper hygienic management and appropriate vaccination should be taken in consideration for effective control the diseases. Further microbiological and molecular diagnoses are suggested for detail studies of these diseases and their pathogens. [J Adv Vet Anim Res 2017; 4(1.000): 39-44]
اظهر المزيد [+] اقل [-]Serum homocysteine, vitamin B12 and folate levels in healthy Turkish Van Cats النص الكامل
2017
Özkan, Cumali | Kozat, Suleyman | Kaya, Abdullah | Akgul, Yakup
Serum homocysteine, vitamin B12 and folate levels in healthy Turkish Van Cats النص الكامل
2017
Özkan, Cumali | Kozat, Suleyman | Kaya, Abdullah | Akgul, Yakup
Objective: The present study was conducted for the purpose of setting forth the normal serum Hcy, vitamin B12 and folate levels in Van cats of varying ages and genders, and the age-dependent variations of these parameters.Materials and methods: The material of the study consisted of a total of 60 healthy Van cats including 30 female and 30 male cats. Cats from both genders were separated into 3 groups on the basis of their ages. While the cats of 6 - 12 months of age were included in the first group, cats of 12-24 months of age were included in the second and those of more than 24 months of age were included in the third group.Results: From the blood samples collected; serum normal homocysteine, vitamin B12 and folate levels were determined as 7.1±2.2 nmol/mL, 850.7±231.8 pg/mL and 16.7±0.8 ng/mL, respectively. In the statistical comparison of the determined serum homocysteine, vitamin B12 and folate levels; some variations among different groups of age and genders were determined. However, none of these differences were determined to be statistically significant.Conclusion: The normal levels of serum Hcy, vitamin B12 and folate of healthy Van cats were set forth for the first time by the present study. It is believed that the normal values of these parameters in Van cats can be used in the diagnosis and prognosis of various diseases and particularly cardiovascular diseases, that they will be helpful for researchers and will serve as a guideline to the studies to be conducted in the future.http://doi.org/10.5455/javar.2017.d191
اظهر المزيد [+] اقل [-]Serum homocysteine, vitamin B12 and folate levels in healthy Turkish Van Cats النص الكامل
2017
Cumali Özkan | Suleyman Kozat | Abdullah Kaya | Yakup Akgul
Objective: The present study was conducted for the purpose of setting forth the normal serum Hcy, vitamin B12 and folate levels in Van cats of varying ages and genders, and the age-dependent variations of these parameters. Materials and methods: The material of the study consisted of a total of 60 healthy Van cats including 30 female and 30 male cats. Cats from both genders were separated into 3 groups on the basis of their ages. While the cats of 6 - 12 months of age were included in the first group, cats of 12-24 months of age were included in the second and those of more than 24 months of age were included in the third group. Results: From the blood samples collected; serum normal homocysteine, vitamin B12 and folate levels were determined as 7.1±2.2 nmol/mL, 850.7±231.8 pg/mL and 16.7±0.8 ng/mL, respectively. In the statistical comparison of the determined serum homocysteine, vitamin B12 and folate levels; some variations among different groups of age and genders were determined. However, none of these differences were determined to be statistically significant. Conclusion: The normal levels of serum Hcy, vitamin B12 and folate of healthy Van cats were set forth for the first time by the present study. It is believed that the normal values of these parameters in Van cats can be used in the diagnosis and prognosis of various diseases and particularly cardiovascular diseases, that they will be helpful for researchers and will serve as a guideline to the studies to be conducted in the future. [J Adv Vet Anim Res 2017; 4(1.000): 58-64]
اظهر المزيد [+] اقل [-]Effect of high fructose administration on histopathology of kidney, heart and aorta of rats النص الكامل
2017
Saleh, Rasha | Merghani, Basma H. | Awadin, Walaa
Effect of high fructose administration on histopathology of kidney, heart and aorta of rats النص الكامل
2017
Saleh, Rasha | Merghani, Basma H. | Awadin, Walaa
Objective: This study was conducted to assess the hazardous effects of high fructose administration on kidney, heart and aorta in rats. Materials and methods: Twenty adult healthy male albino rats weighing about 200-220 gm each were used in this study. The rats were divided into 2 duplicate groups; control group and fructose group. Fructose was administered to rats in fresh drinking water daily for 8 weeks (the whole experimental period). Serum urea, creatinine and sodium concentration were determined by using ready-made kits. Spectrophotometric and colorimetric methods were also used for the detection of other serum components. Histopathological examination of the tissues was done by staining with H&E, PAS and Masson trichrome stains.Results: Nephropathy was achieved in fructose group after one month as indicated by biochemical assay. Pathological observation showed that high fructose administration decreased size of cardio-myocytes, increased cardiac interstitial fibrosis score and aortic wall thickness. In kidneys, high fructose administration decreased glomerular tuft area and corpuscular area, increased percentage in the rats affected with interstitial renal fibrosis score 1 and percentage of rats had glomerular sclerosis score 2.Conclusion: High fructose in diet should be avoided because it can damage kidney, heart and aorta in rats.http://doi.org/10.5455/javar.2017.d193
اظهر المزيد [+] اقل [-]Effect of high fructose administration on histopathology of kidney, heart and aorta of rats النص الكامل
2017
Rasha Saleh | Basma H. Merghani | Walaa Awadin
Objective: This study was conducted to assess the hazardous effects of high fructose administration on kidney, heart and aorta in rats. Materials and methods: Twenty adult healthy male albino rats weighing about 200-220 gm each were used in this study. The rats were divided into 2 duplicate groups; control group and fructose group. Fructose was administered to rats in fresh drinking water daily for 8 weeks (the whole experimental period). Serum urea, creatinine and sodium concentration were determined by using ready-made kits. Spectrophotometric and colorimetric methods were also used for the detection of other serum components. Histopathological examination of the tissues was done by staining with H&E, PAS and Masson trichrome stains. Results: Nephropathy was achieved in fructose group after one month as indicated by biochemical assay. Pathological observation showed that high fructose administration decreased size of cardio-myocytes, increased cardiac interstitial fibrosis score and aortic wall thickness. In kidneys, high fructose administration decreased glomerular tuft area and corpuscular area, increased percentage in the rats affected with interstitial renal fibrosis score 1 and percentage of rats had glomerular sclerosis score 2. Conclusion: High fructose in diet should be avoided because it can damage kidney, heart and aorta in rats. [J Adv Vet Anim Res 2017; 4(1.000): 71-79]
اظهر المزيد [+] اقل [-]Characterization exploration of endothelial progenitor cells from bovine bone marrow النص الكامل
2017
Ning, Mingming | Bai, Chunyu | Sun, Yujiao | Li, Xiuxia | Guan, Weijun
Characterization exploration of endothelial progenitor cells from bovine bone marrow النص الكامل
2017
Ning, Mingming | Bai, Chunyu | Sun, Yujiao | Li, Xiuxia | Guan, Weijun
Objective: This research is designed to explore the methods of isolation and culture for endothelial progenitor cells from bovine bone marrow, characteristic, induced differentiative capacity in vitro.Material and methods: Main experimental reagents contain DMEM/F12, fetal bovine serum, percoll lymphocyte separating, Trypsin 1: 250, VEGF, bFGF, GF-1, EDTA and so on. Cultivation system is DMEM/F12 with 10% FBS and VEGF 10 ng/mL, cultured under 37°C, 5% CO2, saturated humidity. Cell viability is measured by trypan blue solution exclusion test. Immunofluorescent detection is used to detected cell surface markers and double swallows, while bovine chromosome is analyzed by karyotyping. Results: We find that the majority of bovine endothelial progenitor cells (EPCs) are fibrous shaped. Frozen survival of bovine EPCs before and after cryopreservation is 95.2±0.14% and 80.9±0.30% respectively; cryopreservation affects little on the viability of bovine EPCs. Immunofluorescent detection of the cell surface markers CD34, CD133 and flk present positive, which can confirm that the cell cultured in vitro are EPCs. Then Dil-ac-LDL and FITC-UAE-1 uptake assays are carried out. Eventually, bovine EPCs are induced to differentiate into endothelial cells and smooth muscle cells respectively, demonstrating the multi-lineage differentiation potential of bovine EPCs in vitro.Conclusion: EPCs can be got with proper culture system. The little cell cryopreservation effect and stronger induced differentiation potential in vitro imply that EPCs can be applied in genetic resources conservation and reuse.http://doi.org/10.5455/javar.2017.d196
اظهر المزيد [+] اقل [-]Characterization exploration of endothelial progenitor cells from bovine bone marrow النص الكامل
2017
Mingming Ning | Chunyu Bai | Yujiao Sun | Xiuxia Li | Weijun Guan
Objective: This research is designed to explore the methods of isolation and culture for endothelial progenitor cells from bovine bone marrow, characteristic, induced differentiative capacity in vitro. Material and methods: Main experimental reagents contain DMEM/F12, fetal bovine serum, percoll lymphocyte separating, Trypsin 1: 250, VEGF, bFGF, GF-1, EDTA and so on. Cultivation system is DMEM/F12 with 10% FBS and VEGF 10 ng/mL, cultured under 37°C, 5% CO2, saturated humidity. Cell viability is measured by trypan blue solution exclusion test. Immunofluorescent detection is used to detected cell surface markers and double swallows, while bovine chromosome is analyzed by karyotyping. Results: We find that the majority of bovine endothelial progenitor cells (EPCs) are fibrous shaped. Frozen survival of bovine EPCs before and after cryopreservation is 95.2±0.14% and 80.9±0.30% respectively; cryopreservation affects little on the viability of bovine EPCs. Immunofluorescent detection of the cell surface markers CD34, CD133 and flk present positive, which can confirm that the cell cultured in vitro are EPCs. Then Dil-ac-LDL and FITC-UAE-1 uptake assays are carried out. Eventually, bovine EPCs are induced to differentiate into endothelial cells and smooth muscle cells respectively, demonstrating the multi-lineage differentiation potential of bovine EPCs in vitro. Conclusion: EPCs can be got with proper culture system. The little cell cryopreservation effect and stronger induced differentiation potential in vitro imply that EPCs can be applied in genetic resources conservation and reuse. [J Adv Vet Anim Res 2017; 4(1.000): 88-96]
اظهر المزيد [+] اقل [-]Helicobacter pylori in ice cream and its control using mastic gum essential oil النص الكامل
2017
Saad, Nagah Mohamed | El-Zamkan, Mona Ahmed
Helicobacter pylori in ice cream and its control using mastic gum essential oil النص الكامل
2017
Saad, Nagah Mohamed | El-Zamkan, Mona Ahmed
Objective: This study aimed at assessing the prevalence of Helicobacter spp. in ice cream sold at Qena city (Egypt) with special reference to H. pylori, and to study the antimicrobial effect of mastic gum essential oil on H. pylori.Materials and methods: A total of 60 small and large scale ice cream samples (30 each) were investigated for the presence of Helicobacter spp. Then, the essential oil of mastic gum was added to lab prepared ice cream inoculated with H. pylori isolate in a count of Log6 using 2 concentrations of 0.8 and 1.6% and one group was kept as a control group. Each group was subdivided into 2 sub-groups; one was kept at -5°C and another one was kept at -20°C.Results: Helicobacter spp. could be isolated from 11.7%, while, H. pylori could be found in 3.3% of the total examined ice cream samples. Regarding the anti-Helicobacter pylori effect of mastic gum essential oil added to lab prepared ice cream, in samples kept at -5°C it was found that after hardening the count fall into Log5 in both control and 0.8% groups and log4 in 1.6% essential mastic oil concentration. Reduction in H. pylori at the first week and third day of storage reached 100% where H. pylori couldnt be counted or isolated from both 0.8 and 1.6% concentrations, respectively. While in ice cream samples stored at -20°C, the reduction in H. pylori load was rapid at first, it was log4 and log3 in groups of 0.8% and 1.6% concentrations, respectively versus log5 in control samples. At the third day H. pylori was not able to be counted or isolated at third day of storage for both concentrations.Conclusion: All isolates recovered from small scale ice cream samples reflexing the hygienic conditions under which samples were produced. Mastic gum essential oil exhibited a powerful anti-H. pylori effect recommending its addition to food matrix for therapeutic purposes or as a functional food.http://doi.org/10.5455/javar.2017.d199 XML PubReader
اظهر المزيد [+] اقل [-]Helicobacter pylori in ice cream and its control using mastic gum essential oil النص الكامل
2017
Nagah Mohamed Saad | Mona Ahmed El-Zamkan
Objective: This study aimed at assessing the prevalence of Helicobacter spp. in ice cream sold at Qena city (Egypt) with special reference to H. pylori, and to study the antimicrobial effect of mastic gum essential oil on H. pylori. Materials and methods: A total of 60 small and large scale ice cream samples (30 each) were investigated for the presence of Helicobacter spp. Then, the essential oil of mastic gum was added to lab prepared ice cream inoculated with H. pylori isolate in a count of Log6 using 2 concentrations of 0.8 and 1.6% and one group was kept as a control group. Each group was subdivided into 2 sub-groups; one was kept at -5°C and another one was kept at -20°C. Results: Helicobacter spp. could be isolated from 11.7%, while, H. pylori could be found in 3.3% of the total examined ice cream samples. Regarding the anti-Helicobacter pylori effect of mastic gum essential oil added to lab prepared ice cream, in samples kept at -5°C it was found that after hardening the count fall into Log5 in both control and 0.8% groups and log4 in 1.6% essential mastic oil concentration. Reduction in H. pylori at the first week and third day of storage reached 100% where H. pylori couldn’t be counted or isolated from both 0.8 and 1.6% concentrations, respectively. While in ice cream samples stored at -20°C, the reduction in H. pylori load was rapid at first, it was log4 and log3 in groups of 0.8% and 1.6% concentrations, respectively versus log5 in control samples. At the third day H. pylori was not able to be counted or isolated at third day of storage for both concentrations. Conclusion: All isolates recovered from small scale ice cream samples reflexing the hygienic conditions under which samples were produced. Mastic gum essential oil exhibited a powerful anti-H. pylori effect recommending its addition to food matrix for therapeutic purposes or as a functional food. [J Adv Vet Anim Res 2017; 4(2.000): 132-139]
اظهر المزيد [+] اقل [-]Effect of mastitis on post-partum conception of cross bred dairy cows in Chittagong district of Bangladesh النص الكامل
2017
Khokon, Md. Shohidul Islam | Azizunnesa, Ms. | Islam, Md. Mazedul | Chowdhury, Kulsum Begum | Rahman, Md. Lutfor | Ali, Md Zulfekar
Objective: The study was conducted to investigate the effect of mastitis on post-partum conception in crossed cows (Local x Friesian or Sahiwal x Friesian) in Chittagong area of Bangladesh.Materials and methods: A total of 100 lactating cows were randomly selected from thirteen small and medium size commercial dairy farms. The cows were reared under traditional feeding and management systems. Age and number of parity of the cows were 2.5 to 6 years and 1-5, respectively. On-farm California Mastitis Test (CMT) and Whit Slide Test (WST) were performed with the milk samples to diagnose mastitis. Besides, productive and reproductive data were recorded by examining the animals and interviewing the farmers.Results: The incidence of mastitis was significantly (P=0.037) higher (76% for CMT and 62% for WST) in 3.5-4.5 years old cows and lower (P=0.037) (47% for CMT) in 2.5-3.5 years old cows. The highest percentage of CMT (72%) and WST (59%) positive cases were found in cows having parity number 2. The CMT (71%) and WST (53%) test results were similar in third parity cows. The first parity cows were less prone to mastitis (47%). Mastitis had significantly (P=0.002) negative effect on days required to first heat after parturition. Mastitis was also negatively correlated with calving interval (CI) (P=0.030). More the incidence of mastitis prolongs the calving interval and the highest percentage (85% for CMT and 71% for WST) of mastitis was found in cows having 380-400 days calving interval. Lowest mastitis (54% for CMT and 48% for WST) incidence detected cows lowest calving interval. Significantly, more number of Service per Conception (SPC) was also required in cows having more incidence of mastitis (P=0.03). SPC was 4 for subclinical to clinical cases and 3 for clinical cases.Conclusion: Significant correlation between mastitis and post-partum conception is recorded in this study that may hamper reproductive performances.http://doi.org/10.5455/javar.2017.d203XML PubReader
اظهر المزيد [+] اقل [-]Intake, digestibility and nitrogen retention in goats fed ensiled maize stover and supplemented with snake bean (Bobgunnia madagascariensis) pod meal النص الكامل
2017
Kanyinji, Francisco | Nguni, Martha | Mulenga, Abraham
Objective: The aim of this study was to assess nutrient intake, digestibility and nitrogen (N) retention in goats fed ensiled maize stover (EMS) when supplemented with snake bean (Bobgunnia madascariensis) pod meal (BMM).Materials and methods: Eight local goats (21±2 Kg) in individual metabolic cages were divided into two groups. One group received a 100 gm BMM daily supplement to basal diet (EMS+50 gm maize bran), while the other group did not receive any supplement. The experimental design was a 2x2 switchback with 7 days of adaptation and 5 days of sampling of orts, feces and urine. Feed intake was recorded and total fecal collection was done to analyze digestibility of dry matter (DM), crude protein (CP), acid detergent fiber (ADF) and neutral detergent fiber (NDF), as well as N balance.Results: Goats receiving BMM supplement had higher (P<0.05) intake and digestibility of the analyzed nutrients than the group without supplementation. BMM supplementation also significantly increased N intake and fecal N output, compared to those without supplementation. BMM-supplemented goats had significantly better N retention than those without supplementation.Conclusion: Thus, supplementing BMM to goats fed EMS induced a higher (P<0.05) intake and digestibility of nutrients as well as better N retention.http://doi.org/10.5455/javar.2017.d207XML PubReader
اظهر المزيد [+] اقل [-]Molecular based prevalence of shigatoxigenic Escherichia coli in rectal swab of apparently healthy cattle in Mymensingh district, Bangladesh النص الكامل
2017
Hassan, Jayedul | Nazir, K. H. M. Nazmul Hussain | Parvej, Md. Shafiullah | Kamal, Tazrin | Rahman, Md. Tanvir
Molecular based prevalence of shigatoxigenic Escherichia coli in rectal swab of apparently healthy cattle in Mymensingh district, Bangladesh النص الكامل
2017
Hassan, Jayedul | Nazir, K. H. M. Nazmul Hussain | Parvej, Md. Shafiullah | Kamal, Tazrin | Rahman, Md. Tanvir
Objective: Cattle are regarded as the principle reservoir of O157 and non-O157 shigatoxigenic Escherichia coli (STEC). Spreading of the STEC to human is primarily happens through contaminated meat, milk and their byproducts. The present study was aimed to explore the occurrence of STEC in the rectal swab of apparently healthy cattle.Materials and methods: A total of 60 E. coli isolates that were previously isolated from the rectal swab of cattle were used in this study. DNA were extracted from the isolates and screened by PCR to detect E. coli stx (stx1, stx2), ehxA and rfbO157 genes. Representative amplicons of the PCR products were sequenced. The prevalence of the STEC was determined based on the detection of STEC specific stx genes. The prevalence data were further analyzed by SPSS to elucidate any difference among different demographic groups of the study population.Results: Overall, 43.33% (n=26/60) of the isolates were found carrying stx genes. Based on the presence of stx and ehxA genes, 6 different types of STEC were identified, of which 20% (n=12/26) were carrying both stx1 and stx2 genes. None of the isolates was positive for rfbO157. The PCR amplicons were sequenced, and the nucleotide sequences were deposited in GenBank (accession: KM596779-KM596784).Conclusion: In this study, non-O157 STEC were found highly prevalent in the local cattle. This study suggests that the apparently healthy cattle may act as a potential source of STEC infection for humans.http://doi.org/10.5455/javar.2017.d213 XML PubReader
اظهر المزيد [+] اقل [-]Molecular based prevalence of shigatoxigenic Escherichia coli in rectal swab of apparently healthy cattle in Mymensingh district, Bangladesh النص الكامل
2017
Jayedul Hassan | K. H. M. Nazmul Hussain Nazir | Md. Shafiullah Parvej | Tazrin Kamal | Md. Tanvir Rahman
Objective: Cattle are regarded as the principle reservoir of O157 and non-O157 shigatoxigenic Escherichia coli (STEC). Spreading of the STEC to human is primarily happens through contaminated meat, milk and their byproducts. The present study was aimed to explore the occurrence of STEC in the rectal swab of apparently healthy cattle. Materials and methods: A total of 60 E. coli isolates that were previously isolated from the rectal swab of cattle were used in this study. DNA were extracted from the isolates and screened by PCR to detect E. coli stx (stx1, stx2), ehxA and rfbO157 genes. Representative amplicons of the PCR products were sequenced. The prevalence of the STEC was determined based on the detection of STEC specific stx genes. The prevalence data were further analyzed by SPSS to elucidate any difference among different demographic groups of the study population. Results: Overall, 43.33% (n=26/60) of the isolates were found carrying stx genes. Based on the presence of stx and ehxA genes, 6 different types of STEC were identified, of which 20% (n=12/26) were carrying both stx1 and stx2 genes. None of the isolates was positive for rfbO157. The PCR amplicons were sequenced, and the nucleotide sequences were deposited in GenBank (accession: KM596779-KM596784). Conclusion: In this study, non-O157 STEC were found highly prevalent in the local cattle. This study suggests that the apparently healthy cattle may act as a potential source of STEC infection for humans. [J Adv Vet Anim Res 2017; 4(2.000): 194-199]
اظهر المزيد [+] اقل [-]The use of Lespedeza cuneata for natural control of gastrointestinal nematodes in Merino sheep النص الكامل
2017
van Zyl, Erika A. | Botha, Francien S. | Eloff, Kobus J.N. | Msuntsha, Phumzile P. | Oosthuizen, Peter A. | Stevens, Cathy | University of Pretoria | KZN Deptartment of Agriculture and Rural Development
The use of Lespedeza cuneata for natural control of gastrointestinal nematodes in Merino sheep النص الكامل
2017
van Zyl, Erika A. | Botha, Francien S. | Eloff, Kobus J.N. | Msuntsha, Phumzile P. | Oosthuizen, Peter A. | Stevens, Cathy | University of Pretoria | KZN Deptartment of Agriculture and Rural Development
Lespedeza cuneata (poorman’s lucerne; sericea lespedeza), a tannin-rich perennial legume, was offered as hay to dry Merino ewes in a confined feeding experiment to evaluate the effect on the level of gastrointestinal parasite infection in sheep. Medicago sativa (a low tannin containing perennial legume) was used as the control treatment. Parameters faecal egg count (FEC), FAMACHA© scores and rectal temperatures were used. FECs were substantially lower (p = 0.05) in the Lespedeza group after 35 days, together with a trend of higher rectal temperatures, compared with the Medicago group. Although non-significant (p 0.05), the higher rectal temperatures suggested a lower level of anaemia in the sheep on the Lespedeza ration and, therefore, a lower parasite-worm burden. However, FAMACHA© scores showed no significant (p 0.05) differences between treatments despite the differences in FEC that were recorded, indicating that host homeostasis was possibly mediated by improved nutrition as a result of the high protein content of both experimental diets.
اظهر المزيد [+] اقل [-]The use of <i>Lespedeza cuneata</i> for natural control of gastrointestinal nematodes in Merino sheep النص الكامل
2017
Erika A. van Zyl | Francien S. Botha | Kobus J.N. Eloff | Phumzile P. Msuntsha | Peter A. Oosthuizen | Cathy Stevens
Lespedeza cuneata (poorman’s lucerne; sericea lespedeza), a tannin-rich perennial legume, was offered as hay to dry Merino ewes in a confined feeding experiment to evaluate the effect on the level of gastrointestinal parasite infection in sheep. Medicago sativa (a low tannin containing perennial legume) was used as the control treatment. Parameters faecal egg count (FEC), FAMACHA© scores and rectal temperatures were used. FECs were substantially lower (p = 0.05) in the Lespedeza group after 35 days, together with a trend of higher rectal temperatures, compared with the Medicago group. Although non-significant (p > 0.05), the higher rectal temperatures suggested a lower level of anaemia in the sheep on the Lespedeza ration and, therefore, a lower parasite-worm burden. However, FAMACHA© scores showed no significant (p > 0.05) differences between treatments despite the differences in FEC that were recorded, indicating that host homeostasis was possibly mediated by improved nutrition as a result of the high protein content of both experimental diets.
اظهر المزيد [+] اقل [-]