Knowledge base

Test blood for BHB and NEFA in the first two weeks of lactation

Within two weeks after calving or in the last week before calving are the best times to test blood for beta-hydroxybutyrate (BHB) and non-esterified fatty acids (NEFA). So says Julia Moorhouse, Head of Veterinary Services at Map of Ag in a webinar on the transition period. The impact of NEFA and BHB Measuring NEFA levels …

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Recent study: BoviLab is a useful and practical tool

A recent study from the University of Wisconsin-Madison shows that BoviLab is a useful and practical tool for improving the transition period in dairy cows. During the research conducted in 2023, 297 blood samples from 261 Holstein cows were taken and analysed using BoviLab. These cows were divided into four lactation stages: 14 days before …

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Blood testing for BHB alone is not sufficient to prevent ketosis

Veterinarians who exclusively test blood for beta-hydroxybutyrate (BHB) miss a large number of cows that are indeed at risk of subclinical ketosis. British research shows that not all dairy cows have elevated levels of both BHB and non-esterified fatty acids (NEFA) in their blood. A British study examined how many cows experience a negative energy …

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