A surveillance of enteropathogens in piglets from birth to seven days of age in Brazil

Pesquisa Veterinária Brasileira

Eduardo C. Cruz Junior¹  Felipe M. Salvarani¹  Rodrigo O.s. Silva¹  Marcos X. Silva¹  Francisco C.f. Lobato¹  Roberto M.c. Guedes¹ 

[1] ,Universidade Federal de Minas Gerais Escola de Veterinária Belo Horizonte MG ,Brazil

关键词: Piglet;    swine;    Clostridium perfringens;    Clostridium difficile;    enterotoxigenic Escherichia coli;    rotavirus;    Leitões;    suínos;    Clostridium perfringens;    Clostridium difficile;    Escherichia coli enterotoxigênica;    rotavirus;   

DOI  :  10.1590/S0100-736X2013000800002

来源: SciELO

【 摘 要 】

The purpose of the study was to evaluate the real importance of anaerobic enteropathogens and rotavirus in contrast to more common agents as cause of diarrhea in piglets within the first week of life. Sixty 1- to 7-day-old piglets, 30 diarrheic and 30 non-diarrheic (control), from 15 different herds were selected, euthanized and necropsied. Samples of the jejunum, ileum, colon, cecum and feces were collected from the piglets and analyzed to determine the presence of the following enteropathogens: enterotoxigenic Escherichia coli (ETEC), Clostridium perfringens types A and C, Clostridium difficile, rotavirus and Isospora suis. Among diarrheic piglets, 23.3% were positive for C. difficile, 70% for C. perfringens type A cpb2+, 14.3% for rotavirus and 10% for ETEC. Among non-diarrheic control piglets, 10% were positive for C. difficile, 76.7% for C. perfringens type A cpb2+, 0% for rotavirus, 3.3% for ETEC and 3.3% for I. suis. C. perfringens type C was not detected in any of the animals. Histological lesions characteristic of C. difficile, E. coli and rotavirus were observed. However, no C. perfringens type A suggestive lesions were detected. There was a positive correlation between mesocolon edema and the presence of C. difficile toxins. Although C. perfringens type A cpb2+ was the most frequently detected enteropathogen, there was no association between its presence and diarrhea or macro or microscopic changes. C. difficile and Rotavirus were the most relevant pathogens involved with neonatal diarrhea in this study, and histopathology associated with microbiological test proved to be the key to reach a final diagnosis.

【 授权许可】

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