AI Article Synopsis
- * A total of 4,411 Holstein and Holstein-Wagyu crossbred calves were assessed, with findings indicating that farms with high rates of FPT had a significantly higher risk of increased death and culling compared to those without FPT.
- * The results highlighted the crucial role of proper colostrum feeding, showing that farms using frozen stored colostrum had lower FPT rates, reinforcing the importance of monitoring FPT levels to improve calf health outcomes.
Article Abstract
The objectives of this study were to conduct a survey of failure-of-passive-transfer (FPT) in eastern Hokkaido Japan, to evaluate the association between herd-level FPT and death and culling or treatment, and to test the effectiveness of monitoring using herd-level FPT. A total of 4,411 Holstein and Holstein-Wagyu crossbreds calves born from Holstein dams during the year beginning April 2, 2019 on 39 dairy farms were included in the study to investigate death-and-culling and the treatment rate during the first month of life, as well as rearing management up to 3 weeks of age. A subset of Holsteins (n=381) was included in the study for passive transfer and farms were diagnosed as having FPT if more than 20% of newborn calves had serum IgG levels below 10 g/L at the herd level. The prevalence of FPT (
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11251816 PMC http://dx.doi.org/10.1292/jvms.24-0054 DOI Listing Publication Analysis
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