Analysis of relationship between pathogen infection rate and diarrhea severity in Hanwoo calves

3^rd International Conference on Veterinary & Livestock

November 02-03, 2017 Bangkok, Thailand

Sukhan Jung, J H Kang, J B Chae, S H Kim, A Cho, Y H Jung, C Y Choe, J G Yoo, D H Yu, K S Choi, H C Kim, B K Park, J S Chae and J Park

Chonbuk National University, South Korea
Seoul National University, South Korea
National Institute of Animal Science, South Korea
Gyeongsang National University, South Korea
Kyungpook National University, South Korea
Kangwon National University, South Korea
Chonnam National University, South Korea

Posters & Accepted Abstracts: J Vet Sci Technol

Abstract :

The fecal appearance of calves is an important direct/indirect diagnostic indicator for the occurrence of enteritis. In order to understand the relationship between pathogen infection rate and fecal appearance, fecal scoring and infection with specifi c pathogens of parasites and viral infection were analyzed. Fecal scoring was determined by subjective observation in 115 farm calves aged 1-90 days: solid, semi-solid, loose and watery. And then fecal pathogens (Coronavirus, Rotavirus, Cryptosporidium, Giardia, E. coli K99+) were detected by 5-type pathogen diagnosis kit and multiple RT-PCR tests. Also, Eimeria was detected by microscopic observation. Th e association between fecal appearance and pathogen was analyzed by logistic regression model or chi-square test using SPSS. Among the total of 115 calves, 35 were solid fecal type, 38 semi-solid fecal type, 32 loose fecal type and 10 watery type. Pathogen infection rate is positively associated with more liquid fecal type. However, there was no diff erence in pathogen infection rate between solid and semi-solid type (P>0.05). Based on the results, a fecal score of 2 or more (loose and watery feces) was judged as diarrhea. Th e diarrhea group had 12 times higher probability of being infected (P=0.00) compared to the normal group. Rotavirus, Coronavirus and Cryptosporidium were closely associated with diarrhea severity (P<0.05). Th e research confi rmed the relationship between fecal scoring and infection rate in calf diarrhea. Infection was associated with more liquid fecal type. Especially, BCV, BRV and Cryptosporidium are involved in change to liquid feces. Th is research could be an important indicator for better appropriate treatment of calf diarrhea and for providing information of calf diarrhea with clinical symptoms and pathogen infection.

Biography :

Sukhan Jung is a Researcher of Veterinary Medicine at Chonbuk National University, South Korea. She has graduated from the Veterinary Science Graduate School of Chonnam National University and recently been participating in research related to health care and disease prevention of large animals.