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Prevalence Of Salmonella And E.Coli In Diarrheic Calves

By: Muhammad Anwar ullah | Dr.javeria Ali Khan.
Contributor(s): Prof.Dr.Muhammad Sarwar Khan.
Material type: materialTypeLabelBookPublisher: 2011Subject(s): Department of Clinical Medicine &DDC classification: 1233,T Dissertation note: Calf diarrhea causes mortality and heavy economic losses. In this study, calf diarrhea caused by Salmonella and E. coli was particularly focused. The samples were collected from different private livestock farms, small livestock holders belonging to different villages and civil veterinary hospitals of district Jhelum during period of 3 months. A total 150 calves up to 6 months of age with signs of diarrhea were examined. Fresh faecal and blood samples were collected. Faecal samples were cultured on McConkey and on S-S agar for isolation of bacteria. These colonies were identified by using API 20 E Kit. Total number of 50 calves found positive out of 150 calves. Prevalence of salmonella and E. coli was 18.6% and 14.6% respectively. Occurrences of diarrheal disease due to various risk factors like age, sex were recorded for determining these risk factors. Total positive samples of male were 18 and total female positive samples were 32 with prevalence rate of 12% and 21% respectively. Cattle positive sample found in the study were 31 and buffalo positive sample were 19 with 21% and 12% prevalence for cattle and buffalo. Calves were divided into three different age groups of 1-30 days, 31-90 days, 91-180 days of age. The number of positive samples for male and female in these three different age groups were also noted. The prevalence of bacteria in these three groups of cattle and buffalo were also considered in this study. Blood parameters values of total leukocyte, hemoglobin erythrocyte sedimentation rate, neutrophils, eosinophils, basophils, lymphocytes and monocytes were also compared between cattle and buffalo and also in total calves of different age groups. The effect of environmental influences; rainfall, temperature on infectious calf diarrhea was also observed.
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Calf diarrhea causes mortality and heavy economic losses. In this study, calf diarrhea caused by Salmonella and E. coli was particularly focused. The samples were collected from different private livestock farms, small livestock holders belonging to different villages and civil veterinary hospitals of district Jhelum during period of 3 months. A total 150 calves up to 6 months of age with signs of diarrhea were examined. Fresh faecal and blood samples were collected. Faecal samples were cultured on McConkey and on S-S agar for isolation of bacteria. These colonies were identified by using API 20 E Kit.
Total number of 50 calves found positive out of 150 calves. Prevalence of salmonella and E. coli was 18.6% and 14.6% respectively. Occurrences of diarrheal disease due to various risk factors like age, sex were recorded for determining these risk factors. Total positive samples of male were 18 and total female positive samples were 32 with prevalence rate of 12% and 21% respectively. Cattle positive sample found in the study were 31 and buffalo positive sample were 19 with 21% and 12% prevalence for cattle and buffalo. Calves were divided into three different age groups of 1-30 days, 31-90 days, 91-180 days of age. The number of positive samples for male and female in these three different age groups were also noted. The prevalence of bacteria in these three groups of cattle and buffalo were also considered in this study. Blood parameters values of total leukocyte, hemoglobin erythrocyte sedimentation rate, neutrophils, eosinophils, basophils, lymphocytes and monocytes were also compared between cattle and buffalo and also in total calves of different age groups. The effect of environmental influences; rainfall, temperature on infectious calf diarrhea was also observed.

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