CRYPTOSPORIDIUM-MURIS - PREVALENCE, PERSISTENCY, AND DETRIMENTAL EFFECT ON MILK-PRODUCTION IN A DRYLOT DAIRY
CRYPTOSPORIDIUM-MURIS - PREVALENCE, PERSISTENCY, AND DETRIMENTAL EFFECT ON MILK-PRODUCTION IN A DRYLOT DAIRY
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DOI：
10.3168/jds.s0022-0302(95)76723-6
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发表时间：
1995-05-01
影响因子：
3.5
通讯作者：
ANDERSON, BC
中科院分区：
文献类型：
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作者：
ESTEBAN, E;ANDERSON, BC
在三个独立的访问期间，从一个干奶牛场的奶牛中获得了总共1746个个体粪便样本。此外，还从另外4个农场的奶牛中获得了1240份粪便样本。隐孢子虫鼠普遍存在于所有五个牛群采样。多次采样的奶牛始终保持相同的散毒类别。奶牛脱落C.鼠卵囊产奶量显著减少（约3.2 kg/d）。在logistic回归模型中校正年龄、胎次、畜栏和DIM的影响后，平均日产奶量与散毒状态显著相关。
A total of 1746 individual fecal samples were obtained from milking cows during three separate visits to a drylot dairy farm. In addition, 1240 fecal samples were also obtained from cows in four additional farms. Cryptosporidium muris was prevalent in all five herds sampled. Cows that were sampled more than once invariably remained in the same shedding category. Cows shedding C. muris oocysts produced significantly less milk (approximately 3.2 kg/d). After corrections for the effects of age, parity, pen, and DIM in a logistic regression model, mean daily milk production was significantly associated with shedding status.