خيارات البحث
النتائج 781 - 790 من 824
Effect of aromatic oils on the expression of some virulence-associated and antimicrobial resistance genes of Escherichia coli isolated from broilers النص الكامل
2022
Walid Hamdy Hassan (Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt) | Hala Sayed Hassan Salam (Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt) | Wafaa Mohamed Hassan (Microbiology-Reference Laboratory of Quality Control on Poultry Production, Animal Health Research Institute AHRI, Giza Governorate, Egypt) | Salama Abohamra Sayed Shany (Department of Poultry Diseases, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt) | Ghada Sayed Ibrahim Osman (Department of Bacteriology, Animal Health Research Institute, Beni-Suef Laboratory, Agricultural Research Center, Beni-Suef, Egypt.)
Effect of aromatic oils on the expression of some virulence-associated and antimicrobial resistance genes of Escherichia coli isolated from broilers النص الكامل
2022
Walid Hamdy Hassan (Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt) | Hala Sayed Hassan Salam (Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt) | Wafaa Mohamed Hassan (Microbiology-Reference Laboratory of Quality Control on Poultry Production, Animal Health Research Institute AHRI, Giza Governorate, Egypt) | Salama Abohamra Sayed Shany (Department of Poultry Diseases, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt) | Ghada Sayed Ibrahim Osman (Department of Bacteriology, Animal Health Research Institute, Beni-Suef Laboratory, Agricultural Research Center, Beni-Suef, Egypt.)
Objectives: This study aimed to prove the effects of Escherichia coli isolates isolated from dis¬eased broilers to form biofilms, describe their antimicrobial sensetivity, and determine the effect of allicin and cinnamon essential oils on the expression of some genes (fimH, int1, and luxS) through quantitative polymerase chain reaction (q-PCR). Materials and Methods: 140 samples were obtained from diseased broilers in Beni-Suef Governorate, Egypt. These samples were examined by conventional bacteriology methods to detect the causative agent. The antimicrobial susceptibility of the isolated bacteria was assessed using the disc diffusion method, The ability of yeast extract-casamino acids Congo Red Agar to generate phenotypic biofilms was next tested. The presence of resistance and virulence genes in some multidrug resistant isolates was genotypically investigated. The antibacterial effects of allicin and cinnamon oil were evaluated against the growth of multidrug-resistant E. coli. Finally, q-PCR was utilized to assess changes in some genes' expression. Results: Escherichia coli was isolated from 61 samples (43.6%). An antimicrobial susceptibility test revealed that multidrug-resistance (MDR) (could resist more than three antimicrobial classes) E. coli prevalence was 100%. 40.8% of isolates phenotypically produce biofilms. The detection of resistance and virulence genes by PCR showed that all tested isolates carry aadB, fimH, int1, qnrS, and luxS genes, while only 40% harbor iss genes. q-PCR showed that after treatment with allicin and cinnamon oils, gene expression went down. Conclusion: This investigation highlights that E. coli showed resistance against most of the tested antimicrobials; all isolates were MDR. The study showed wide dissemination of virulence and resistance genes among E. coli. Allicin and cinnamon oils have antimicrobial activities and could be used as alternatives to synthetic antimicrobial agents. [J Adv Vet Anim Res 2022; 9(2.000): 191-202]
اظهر المزيد [+] اقل [-]Effect of aromatic oils on the expression of some virulence-associated and antimicrobial resistance genes of Escherichia coli isolated from broilers النص الكامل
2022
Walid Hamdy Hassan | Hala Sayed Hassan Salam | Wafaa Mohamed Hassan | Salama Abohamra Sayed Shany | Ghada Sayed Ibrahim Osman
Objectives: This study aimed to prove the effects of Escherichia coli isolates isolated from dis¬eased broilers to form biofilms, describe their antimicrobial sensetivity, and determine the effect of allicin and cinnamon essential oils on the expression of some genes (fimH, int1, and luxS) through quantitative polymerase chain reaction (q-PCR). Materials and Methods: 140 samples were obtained from diseased broilers in Beni-Suef Governorate, Egypt. These samples were examined by conventional bacteriology methods to detect the causative agent. The antimicrobial susceptibility of the isolated bacteria was assessed using the disc diffusion method, The ability of yeast extract-casamino acids Congo Red Agar to generate phenotypic biofilms was next tested. The presence of resistance and virulence genes in some multidrug resistant isolates was genotypically investigated. The antibacterial effects of allicin and cinnamon oil were evaluated against the growth of multidrug-resistant E. coli. Finally, q-PCR was utilized to assess changes in some genes' expression. Results: Escherichia coli was isolated from 61 samples (43.6%). An antimicrobial susceptibility test revealed that multidrug-resistance (MDR) (could resist more than three antimicrobial classes) E. coli prevalence was 100%. 40.8% of isolates phenotypically produce biofilms. The detection of resistance and virulence genes by PCR showed that all tested isolates carry aadB, fimH, int1, qnrS, and luxS genes, while only 40% harbor iss genes. q-PCR showed that after treatment with allicin and cinnamon oils, gene expression went down. Conclusion: This investigation highlights that E. coli showed resistance against most of the tested antimicrobials; all isolates were MDR. The study showed wide dissemination of virulence and resistance genes among E. coli. Allicin and cinnamon oils have antimicrobial activities and could be used as alternatives to synthetic antimicrobial agents. [J Adv Vet Anim Res 2022; 9(2.000): 191-202]
اظهر المزيد [+] اقل [-]Effect of aromatic oils on the expression of some virulence-associated and antimicrobial resistance genes of Escherichia coli isolated from broilers النص الكامل
2022
Hassan, Walid Hamdy | Salam, Hala Sayed Hassan | Hassan, Wafaa Mohamed | Shany, Salama Abohamra Sayed | Osman, Ghada Sayed Ibrahim
Objectives: This study aimed to prove the effects of Escherichia coli isolates isolated from diseased broilers to form biofilms, describe their antimicrobial sensitivity, and determine the effect of allicin and cinnamon essential oils on the expression of some genes (fimH, int1, and luxS) through quantitative polymerase chain reaction (q-PCR). Materials and Methods: 140 samples were obtained from diseased broilers in Beni-Suef Governorate, Egypt. These samples were examined by conventional bacteriology methods to detect the causative agent. The antimicrobial susceptibility of the isolated bacteria was assessed using the disc diffusion method, The ability of yeast extract-casamino acids Congo Red Agar to generate phenotypic biofilms was next tested. The presence of resistance and virulence genes in some multidrug resistant isolates was genotypically investigated. The antibacterial effects of allicin and cinnamon oil were evaluated against the growth of multidrug-resistant E. coli. Finally, q-PCR was utilized to assess changes in some genes’ expression. Results: Escherichia coli was isolated from 61 samples(43.6%). An antimicrobial susceptibility test revealed that multidrug-resistance (MDR) (could resist more than three antimicrobial classes) E. coli prevalence was 100%. 40.8% of isolates phenotypically produce biofilms. The detection of resistance and virulence genes by PCR showed that all tested isolates carry aadB, fimH, int1, qnrS, and luxS genes, while only 40% harbor is genes. q-PCR showed that after treatment with allicin and cinnamon oils, gene expression went down. Conclusion: This investigation highlights that E. coli showed resistance against most of the tested antimicrobials; all isolates were MDR. The study showed wide dissemination of virulence and resistance genes among E. coli. Allicin and cinnamon oils have antimicrobial activities and could be used as alternatives to synthetic antimicrobial agents. J. Adv. Vet. Anim. Res., 9(2): 191–202, June 2022 http://doi.org/10.5455/javar.2022.i584
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.)
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 [-]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 [-]Dietary addition of microencapsulated turmeric in an amorphous matrix of maltodextrin on quality characteristics of broiler chicken النص الكامل
2022
Harvey Febrianta (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia) | Vitus Dwi Yunianto (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia) | Nurwantoro Nurwantoro (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia) | Valentinus Priyo Bintoro (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia.)
Dietary addition of microencapsulated turmeric in an amorphous matrix of maltodextrin on quality characteristics of broiler chicken النص الكامل
2022
Harvey Febrianta (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia) | Vitus Dwi Yunianto (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia) | Nurwantoro Nurwantoro (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia) | Valentinus Priyo Bintoro (Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia.)
Objective: This experiment investigated the effect of microencapsulated turmeric by maltodextrin as an amorphous matrix material on the health status of broiler chickens. Materials and Methods: The broilers used were 144 healthy 1-day-old males. The average body weight was 47.8 ± 1.42 gm. The statistical design was based on a completely randomized design with four treatments and six replications. There were six broiler chickens in each experimental unit. The treatments were TM0 = 0 gm/kg of basal feed, TM1 = 1 gm/kg of basal feed, TM2 = 2 gm/kg of basal feed, and TM3 = 3 gm/kg of basal feed. The growth performance, physical traits, internal organs, microbial population, intestinal morphology, hematological parameters, and anti¬oxidant profile were examined. Results: The results reported that microencapsulated turmeric by maltodextrin as an amorphous matrix significantly improved the hematological parameters, growth performance, antioxidant profile, LAB, immune organs, and intestinal morphology. The results also show decreasing coli¬form and pH of the cecum. Conclusions: Dietary addition of maltodextrin microencapsulated turmeric of 3 gm/kg in basal feed can be used as a natural feed additive to improve the health status of broiler chickens. [J Adv Vet Anim Res 2022; 9(2.000): 221-229]
اظهر المزيد [+] اقل [-]Dietary addition of microencapsulated turmeric in an amorphous matrix of maltodextrin on quality characteristics of broiler chicken النص الكامل
2022
Febrianta, Harvey | Yunianto, Vitus Dwi | Nurwantoro, Nurwantoro | Bintoro, Valentinus Priyo
Objective: This experiment investigated the effect of microencapsulated turmeric by maltodextrin as an amorphous matrix material on the health status of broiler chickens. Materials and Methods: The broilers used were 144 healthy 1-day-old males. The average body weight was 47.8 ± 1.42 gm. The statistical design was based on a completely randomized design with four treatments and six replications. There were six broiler chickens in each experimental unit. The treatments were TM0 = 0 gm/kg of basal feed, TM1 = 1 gm/kg of basal feed, TM2 = 2 gm/kg of basal feed, and TM3 = 3 gm/kg of basal feed. The growth performance, physical traits, internal organs, microbial population, intestinal morphology, hematological parameters, and antioxidant profile were examined. Results: The results reported that microencapsulated turmeric by maltodextrin as an amorphous matrix significantly improved the hematological parameters, growth performance, antioxidant profile, LAB, immune organs, and intestinal morphology. The results also show decreasing coliform and pH of the cecum. Conclusions: Dietary addition of maltodextrin microencapsulated turmeric of 3 gm/kg in basal feed can be used as a natural feed additive to improve the health status of broiler chickens. J. Adv. Vet. Anim. Res., 9(2): 221–229, June 2022 http://doi.org/10.5455/javar.2022.i587
اظهر المزيد [+] اقل [-]Dietary addition of microencapsulated turmeric in an amorphous matrix of maltodextrin on quality characteristics of broiler chicken النص الكامل
2022
Harvey Febrianta | Vitus Dwi Yunianto | Nurwantoro Nurwantoro | Valentinus Priyo Bintoro
Objective: This experiment investigated the effect of microencapsulated turmeric by maltodextrin as an amorphous matrix material on the health status of broiler chickens. Materials and Methods: The broilers used were 144 healthy 1-day-old males. The average body weight was 47.8 ± 1.42 gm. The statistical design was based on a completely randomized design with four treatments and six replications. There were six broiler chickens in each experimental unit. The treatments were TM0 = 0 gm/kg of basal feed, TM1 = 1 gm/kg of basal feed, TM2 = 2 gm/kg of basal feed, and TM3 = 3 gm/kg of basal feed. The growth performance, physical traits, internal organs, microbial population, intestinal morphology, hematological parameters, and anti¬oxidant profile were examined. Results: The results reported that microencapsulated turmeric by maltodextrin as an amorphous matrix significantly improved the hematological parameters, growth performance, antioxidant profile, LAB, immune organs, and intestinal morphology. The results also show decreasing coli¬form and pH of the cecum. Conclusions: Dietary addition of maltodextrin microencapsulated turmeric of 3 gm/kg in basal feed can be used as a natural feed additive to improve the health status of broiler chickens. [J Adv Vet Anim Res 2022; 9(2.000): 221-229]
اظهر المزيد [+] اقل [-]Food handling in the domestic environment: an online questionnaire study with respondents from 24 of 26 Brazilian states النص الكامل
2022
Aryele Nunes da Cruz Encide Sampaio | Vanessa Mendonça Soares | Leonardo Ereno Tadielo | Emanoelli Aparecida Rodrigues dos Santos | Camila Koutsodontis Cerqueira-Cézar | Giovanni Costa Danelon | Luciano dos Santos Bersot | Juliano Gonçalves Pereira
Using an online questionnaire, this study evaluated the profile of a Brazilian population’s food handling practices in the home environment. The questionnaire, containing questions about domestic behavior in terms of hygiene and food handling, was built and available through social media sites. Information about the participants’ profiles, their food prepreparation, food preparation, and food post-preparation practices, and the occurrence of foodborne diseases (FBDs) was included in the questionnaire. A total of 701 responses were obtained. The interviewees included 78.31% female participants and 21.68% male participants, with an average age of 31.2 years. Nearly all (94.3%) had a complete or incomplete higher education. In the pre preparation stage, the participants evaluated the shelf life (97.28%) and storage temperature (44.79%) of the products while purchasing them. Regarding food handling practices, only a few participants washed the food packages before storing them (31.95%) or removed hand jewelry or other adornments when washing food (61.48%). Most participants washed their hands (91.58%) and washed vegetables (99.28%). But a group of interviewees reported washing raw meat (27.81%) before preparing it. Cutting surfaces such as plastic (50.36%) and glass (49.36%) tops were the most prevalent in the study. Most respondents did not know how long they had been using their cutting boards (67.62%) and mentioned using the same surface to handle both raw and ready-to-eat products (84.17%). As for the preparation, most interviewees declared they did not check the food temperature during preparation (86.31%), ignoring the ideal cooking temperature (88.26%). Regarding the occurrence of FBDs, 79.17% of the interviewees reported having suspicious clinical signs associated with contaminated foods and 65.59% did not seek medical help. Thus, the participants demonstrated ignorance about adequate practices for food safety in the home environment, highlighting the need to conduct health education programs within the Brazilian population.
اظهر المزيد [+] اقل [-]Fermentation profile, aerobic stability, chemical and mineral composition of silages of mango combined with cocoa pod husk meal النص الكامل
2022
Gherman Garcia Leal de Araújo | Cleyton de Almeid a Araújo | Glayciane Costa Gois | André Luiz Rodrigues Magalhães | Judicael Janderson da Silva Novaes | Jéssica Maria da Conceição da Silva Rodrigues | Yuri Santa Rosa Guimarães | Alexandre Fernandes Perazzo | Thieres George Freire da Silva | Edson Mauro dos Santos | Fleming Sena Campos
The objective was to evaluate the fermentation profile, aerobic stability, chemical composition, and mineral content of silages of mango combined with cocoa pod husk meal. A completely randomized design was adopted, including four levels (65, 70, 75, and 80%) and five repetitions, totaling 20 experimental silos that were opened after 90 days of sealing. Increasing mango levels in the silages increased the dry matter recovery, total carbohydrates, and fraction B2 of carbohydrates, and reduced gas losses, dry matter, and mineral matter. The quadratic effect was found for pH, buffering capacity, potassium, boron, iron, and nitrogen fractions A and B1 + B2. Using unconventional products such as mango combined with cocoa pod husk meal for silage making can reduce the cost of food supplementation for ruminants, and the environmental contamination.
اظهر المزيد [+] اقل [-]Genetic parameters and trends of growth traits in Nelore cattle raised in the Northern region of Brazil النص الكامل
2022
Mariana Rocha Rodrigues | Rafael Espigolan | José Bento Sterman Ferraz | Fernando Oliveira Bussiman | Ricardo Toniolli | Raysildo Barbosa Lôbo | Helcileia Dias Santos | Leandro Lopes Nepomuceno | Jorge Luís Ferreira
The objective of this study was to estimate (co)variances and genetic parameters and to predict genetic trends for weight at 120 (W120), 210 (W210), 365 (W365), and 450 (W450) days of age in Nelore cattle raised in the northern region of Brazil. The database comprised records of 30,387 animals born between 2000 and 2013 in the Brazilian North. Estimates were calculated by the Restricted Maximum Likelihood (REML) method, in single- and multi-trait analyses in an animal model. Heritability as obtained using single- and multi-trait models for W120 (0.22 and 0.31), W210 (0.20 and 0.34), W365 (0.51 and 0.51), and W450 (0.49 and 0.51) indicated moderate to high magnitudes, with the possibility of genetic selection and incorporation into the herd. Genetic correlations between growth traits were favorable, ranging from 0.78 to 0.96. Genetic trends for W120 and W210 varied largely, from -0.31 to 4.68 and -0.53 to 7.62 kg/year, respectively. Smaller fluctuations were observed in genetic trends for W365 and W450, which ranged from -1.08 to 10.90 and -1.29 to 12.51 kg/year, respectively. Selection for W365 and W450 proved to be the criterion of choice for Nelore herds raised in the region; however, it may compromise adult performance because of higher costs and time for production. A thorough analysis of mattings is recommended to allow the selection of earlier-developing animals.
اظهر المزيد [+] اقل [-]Productive and reproductive performance of crossbred dairy heifers with induced lactation and efficacy of antimicrobial therapy associated with internal teat sealants النص الكامل
2022
Camylla Pedrosa Monteiro | Rodolfo Mingoti | Bruna Gomes Alves | Melina Melo Barcelos | Gustavo Freu | Cristian Marlon de Magalhães Rodrigues Martins | Pietro Sampaio Baruselli | Marcos Veiga dos Santos
This study evaluated (a) the efficacy of an association between injectable antibiotic therapy and sealant (ATBS) on milk yield (MY), somatic cell count (SCC), and prevalence of intramammary infections (IMI); and (b) the efficacy of gonadotropin-releasing hormone (GnRH) on follicular cyst (FCs) resolution (cyclicity at the 45th day in milk; DIM) and cumulative pregnancy rate (CPR) in heifers submitted to a lactation induction protocol (LIP). A total of 114 crossbred (Holstein × Jersey) heifers, with 34.7 ± 4.8 months and 439 ± 56.35 kg were submitted to LIP. On the 5th day of the LIP, the heifers were assigned to (i) ATBS (n = 57) with 7 mg/kg of norfloxacin associated with sealant and (ii) Control 1 (n = 57; CONT1) with no treatments. Lactation began on the 21st day of LIP and the 15th DIM, FCs were diagnosed and 106 heifers were randomized into two treatment groups with 53 heifers each: (i) GnRH (5 mL injectable GnRH) and (ii) Control 2 (CONT2; no treatment). Of the 114 heifers initially induced, 83.33% (n = 95) responded to LIP with an average MY of 15.19 kg/milk/day during 22 weeks of lactation. In the first 14 DIM, the IMI prevalence was 18% and 28% for heifers ATBS and CONT1 treated, respectively. Additionally, coagulase-negative Staphylococcus was the most frequently isolated group of pathogens. Mammary quarters that received ATBS treatment had a lower risk of IMI and SCC than CONT1. The cyclicity at 45 DIM was 68% (ATBS) and 35% (CONT1), and 57% and 46% for animals in the GnRH and CONT2. CPR was 60% in the ATBS group and 89% in CONT1, but GnRH treatment did not affect the CPR. In conclusion, LIP was effective in stimulating MY in heifers, and the IMI prevalence decreased with ATBS treatment. Also, the use of GnRH did not affect the FC regression, cyclicity at 45 DIM, and CPR.
اظهر المزيد [+] اقل [-]Perinatal exposure to an aromatase inhibitor glyphosate-base herbicide reduced male and female social behavior in juvenile age and the sexual behavior at adult female rat النص الكامل
2022
Esther Lopes Ricci | Miriam Oliveira Ribeiro | André Rinaldi Fukushima | Thaisa Meira Sandini | Paulo Ricardo Dell’Armelina Rocha | Paula Andrea Faria Waziry Waziry | Maria Martha Bernardi | Helenice de Souza Spinosa
Objectives: The herbicide glyphosate, a pesticide used in agriculture to control weeds, both in food crops and in other agricultural areas, has been identified as an endocrine modulator through the inhibition of aromatase activity and the activation of estrogen receptors. The present study examined the effects of a glyphosate-based herbicide (Roundup® (GLY-BH) on sexual dimorphism of rats after perinatal exposure to low and high GLY-BH in males and females offspring. Methods: Two groups of pregnant rats were treated with two doses of GLY-BH (50 or 150 mg/kg) from day 15 of gestation (GD15) to postnatal day 7 (PND7). Play fighting behavior was observed at the juvenile stage and during social and sexual behaviors in adulthood. Results: Perinatal GLY BH exposure reduced male and female body weight at 28, 75, and 90 days of age. The play fighting behavior was decreased in both sexes, but female rats were more affected. The sexual behaviors were reduced only in females. Conclusions: Perinatal exposure to both doses of GLY-BH promoted sexually dimorphic effects in both juvenile and adulthood stages. These effects were attributed to the inhibition of aromatase activity induced by exposure to GLY-BH in the perinatal period.
اظهر المزيد [+] اقل [-]Comparative study between S-(+)-ketamine–midazolam and fentanyl–droperidol in black-tufted marmosets (Callithrix penicillata) النص الكامل
2022
Luiz Fernando Larangeira Lopes | Vanessa Nadine Gris | Mario Antonio Ferraro | Silvia Renata Gaido Cortopassi
Sedative and antinociceptive effects of two anesthetic protocols in black-tufted marmosets were compared in this study. Twenty-six marmosets underwent chemical immobilization for physical examination, blood sampling, tattooing, and microchipping. Animals were randomly treated with S-(+)-ketamine (10 mg/kg) and midazolam (1 mg/kg) (KM) or fentanyl (12.5 µg/kg) and droperidol (625 µg/kg) (FD) given by intramuscular injection. Heart and respiratory rates were recorded. Sedation, antinociception, muscle relaxation, posture, auditory, and visual responses were evaluated using a scoring system. Sedation in KM was achieved faster (p < 0.001) and lasted for a shorter period of time (p = 0.0009). KM was similar to FD in its cardiorespiratory effects, auditory and visual responses. Both protocols promoted adequate sedation to allow manipulation. Animals in KM assumed lateral recumbency while animals in FD maintained a quadrupedal posture during evaluation. FD produced less intense sedation and muscle relaxation but a higher degree of antinociception compared to KM and is suitable for procedures that require analgesia in black-tufted marmosets.
اظهر المزيد [+] اقل [-]The Level of Community Compliance Towards Prevention Efforts of COVID-19 in West Tanjung Jabung Regency, Jambi النص الكامل
2022
Zulfitri Zulfitri | Safrizal Rahman | Misbahul Badri | Baidillah Zulkifli
The Level of Community Compliance Towards Prevention Efforts of COVID-19 in West Tanjung Jabung Regency, Jambi النص الكامل
2022
Zulfitri Zulfitri | Safrizal Rahman | Misbahul Badri | Baidillah Zulkifli
The COVID-19 cases in Tanjung Jabung Barat Regency, Jambi, have has risen significantly daily. This significant increase in cases illustrates that the people are less than optimal in complying with the health protocols established by the government. This phenomenon concluded that public compliance in efforts to prevent COVID-19 has a vital role in preventing the spread. This study aims to describe the level of compliance towards prevention efforts of COVID-19 in the community. We use a descriptive survey method with probability sampling techniques to obtain the data. The subjects in this study were the community of Tanjung Jabung Barat, Jambi Regency, who were17 years old with a sample size of 400 samples. Collecting data using a questionnaire in a validated form and distributed to the public via social media. The data analysis in this study is the frequency distribution analysis (univariate analysis). The results of this study shown were that 172 respondents (43.0%) had a good level of compliance, 146 respondents (36.5%) had a sufficient level of adherence, and as many as 82 respondents (20.5%) had a good level of compliance to prevent COVID-19 spreads.
اظهر المزيد [+] اقل [-]The Level of Community Compliance Towards Prevention Efforts of COVID-19 in West Tanjung Jabung Regency, Jambi النص الكامل
2022
Zulfitri, Zulfitri | Rahman, Safrizal | Badri, Misbahul | Zulkifli, Baidillah
The COVID-19 cases in Tanjung Jabung Barat Regency, Jambi, have has risen significantly daily. This significant increase in cases illustrates that the people are less than optimal in complying with the health protocols established by the government. This phenomenon concluded that public compliance in efforts to prevent COVID-19 has a vital role in preventing the spread. This study aims to describe the level of compliance towards prevention efforts of COVID-19 in the community. We use a descriptive survey method with probability sampling techniques to obtain the data. The subjects in this study were the community of Tanjung Jabung Barat, Jambi Regency, who were17 years old with a sample size of 400 samples. Collecting data using a questionnaire in a validated form and distributed to the public via social media. The data analysis in this study is the frequency distribution analysis (univariate analysis). The results of this study shown were that 172 respondents (43.0%) had a good level of compliance, 146 respondents (36.5%) had a sufficient level of adherence, and as many as 82 respondents (20.5%) had a good level of compliance to prevent COVID-19 spreads.
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