Kodituwakku S N, Harbour D A
Department of Veterinary Medicine, University of Bristol, Langford.
Vet Rec. 1990 Jun 2;126(22):547-9.
In a study of the epizootiology and prevalence of enteropathogens which may be involved in neonatal calf diarrhoea, 10 in-calf cows from a herd with a history of rotavirus-induced calf diarrhoea were monitored over a period of six to seven months. All the cows excreted rotavirus intermittently without showing any clinical signs, and 21.8 per cent of faecal samples contained rotavirus. Reoviruses were isolated from 87 per cent of the samples from the cows, and from all the 10 calves born to them. However, rotavirus was detected in only one calf, and diarrhoea developed only in this calf even though the calves were housed in communal pens. Campylobacter jejuni was isolated from six of the 10 dams and from five of the 10 calves, not including the calf with diarrhoea. Other potential enteropathogens such as cryptosporidium, salmonella, Clostridium difficile, coronavirus and other viruses were not found, but two cows and two calves shed enterotoxigenic Escherichia coli.
在一项关于可能与新生犊牛腹泻有关的肠道病原体的流行病学和流行情况的研究中，对来自一个有轮状病毒引起犊牛腹泻病史的牛群中的10头怀孕母牛进行了为期6至7个月的监测。所有母牛间歇性地排出轮状病毒，未表现出任何临床症状，21.8%的粪便样本含有轮状病毒。从87%的母牛样本以及它们所生的全部10头犊牛的样本中分离出呼肠孤病毒。然而，仅在一头犊牛中检测到轮状病毒，尽管犊牛饲养在公共围栏中，但只有这头犊牛出现了腹泻。从10头母牛中的6头以及10头犊牛中的5头（不包括腹泻的那头犊牛）中分离出空肠弯曲菌。未发现其他潜在的肠道病原体，如隐孢子虫、沙门氏菌、艰难梭菌、冠状病毒和其他病毒，但有两头母牛和两头犊牛排出产肠毒素大肠杆菌。
