生长猪腹泻——性能良好和较差猪群动物的临床、形态学及微生物学检查结果比较
Diarrhoea in the growing pig - a comparison of clinical, morphological and microbial findings between animals from good and poor performance herds.
作者信息
Jacobson M, Hård af Segerstad C, Gunnarsson A, Fellström C, de Verdier Klingenberg K, Wallgren P, Jensen-Waern M
机构信息
Department of Large Animal Clinical Sciences, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, P.O. Box 7018, SE-750 07 Uppsala, Sweden.
出版信息
Res Vet Sci. 2003 Apr;74(2):163-9. doi: 10.1016/s0034-5288(02)00187-x.
Abstract
Diarrhoea among growing pigs (8-13 weeks old) is a significant problem in many herds. Nine herds with poor performance and diarrhoea among growing pigs were selected on the basis of their piglet mean age at a body weight of 25 kg, compared to the overall mean age in Swedish herds. In addition, four herds with good average performance and no problems with diarrhoea were selected. Pigs were necropsied and samples for histology and microbiology were collected. Based on the necropsy findings, the pigs from the good performing herds were all judged to be healthy. The presence of Brachyspira pilosicoli and Lawsonia intracellularis was significantly correlated to poor performing herds and the results indicate that these microbes are main pathogens involved in enteric diseases among Swedish grower pigs. In addition, concomitant infections with other presumptive pathogens were commonly found.
摘要
生长猪（8至13周龄）腹泻是许多猪群中存在的一个重大问题。根据25千克体重时仔猪的平均年龄，并与瑞典猪群的总体平均年龄相比较，挑选出9个生长猪生长性能差且有腹泻问题的猪群。此外，还挑选出4个平均性能良好且无腹泻问题的猪群。对猪进行了尸检，并采集了用于组织学和微生物学检查的样本。根据尸检结果，所有生长性能良好猪群的猪均被判定为健康。短螺旋体和胞内劳森菌的存在与生长性能差的猪群显著相关，结果表明这些微生物是瑞典生长猪肠道疾病的主要病原体。此外，还普遍发现了与其他假定病原体的混合感染。
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