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in visual lameness scores when administered to dairy cattle in an acute-induced lameness model when compared to a placebo. 4 In cattle, the “wind up” pain threshold of lame animals has been shown to last 28 days beyond the point of detection

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in Journal of the American Veterinary Medical Association

-to-lymphocyte count ratio > 1 has been used for the past 50 years as a marker of inflammation in cows. 1,7–10 Recently, our research group established that 33% (32.8 ± 2.1; mean and 95% CI) of 4,300 milk samples from predominantly Holstein dairy cattle from 113 lower

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in Journal of the American Veterinary Medical Association

reported here was to elucidate the ecology of L monocytogenes on dairy farms by determining the prevalence of the organism in various samples obtained from dairy cattle farms in New York State. Materials and Methods Fifty farms were randomly

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in American Journal of Veterinary Research

bovis , 1 which was first named Cryptosporidium genotype Bovine B when it was identified in 2002. 2 Subsequent work has demonstrated that this organism is common among dairy cattle throughout the northeastern part of the United States, with

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in Journal of the American Veterinary Medical Association

the chance of causing deleterious effects to the conceptus. Therefore, the objective of the study reported here was to determine the effect of 1 or 2 FMSs performed during PPR for pregnancy diagnosis in early gestation on pregnancy loss in dairy cattle

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in Journal of the American Veterinary Medical Association

resembling AV but affecting the duodenal sigmoid flexure in dairy cattle. The purpose of the study reported here was to characterize DSFV and determine the prognosis for affected cattle undergoing surgery. Materials and Methods Case selection

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in Journal of the American Veterinary Medical Association

control of respiratory tract disease associated with Mannheimia haemolytica in beef cattle and dairy cattle under 20 months of age, with a slaughter withdrawal period of 28 days. 1 The drug is not approved for use in lactating dairy cattle; however

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in Journal of the American Veterinary Medical Association

Hemorrhagic bowel syndrome, also known as bloody gut syndrome or JHS, has emerged as an economically important, sporadic, acute disease of adult dairy cattle. The first account of the disease was published in 1992, 1 and in the intervening years

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in Journal of the American Veterinary Medical Association

There are 2 critical periods when dairy cattle have a high risk of developing an IMI. 1–5 The first is during the first 21 days after the end of lactation when the udder is undergoing involution. The second is the period just before and after

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in Journal of the American Veterinary Medical Association

drug-induced hypertension and/or a result of decreased central sympathetic activity. The observed change was relatively mild, and bradycardia was not observed in any animal. The normal range of HRs in dairy cattle is reported to be between 38 and 96 bpm

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in Journal of the American Veterinary Medical Association