Characteristics of failure of passive transfer at the herd level using the serum immunoglobulin G concentration as an indicator on dairy farms in eastern Hokkaido, Japan.

IF 1.1 4区农林科学 Q3 VETERINARY SCIENCES Journal of Veterinary Medical Science Pub Date : 2024-07-02 Epub Date: 2024-05-31 DOI:10.1292/jvms.24-0054

Shuji Kayasaki, Hitomi Satoh, Keitaro Oguchi, Kyoko Chisato, Rika Fukumori, Hidetoshi Higuchi, Kazuyuki Suzuki, Shin Oikawa

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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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日本北海道东部奶牛场以血清免疫球蛋白 G 浓度为指标的牛群被动转群失败特征。

本研究的目的是对日本北海道东部的被动转群失败（FPT）情况进行调查，评估牛群水平的被动转群失败与死亡、淘汰或治疗之间的关联，并检验利用牛群水平的被动转群失败进行监测的有效性。研究共纳入了39个奶牛场的4411头荷斯坦和荷斯坦-和牛杂交犊牛，这些犊牛是荷斯坦母牛在2019年4月2日开始的一年中所生，研究调查了犊牛出生后第一个月的死亡和淘汰情况、治疗率以及3周龄前的饲养管理情况。荷斯坦牛的一个子集（n=381）被纳入研究进行被动转移，如果超过 20% 的新生犊牛的血清 IgG 水平低于 10 g/L，则牧场被诊断为患有 FPT。牧场的 FPT 患病率（IgG < 10 g/L）与被动转群有显著相关性（r=0.27，P<0.05）。

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来源期刊

Journal of Veterinary Medical Science 农林科学-兽医学

CiteScore

2.30

自引率

8.30%

发文量

230

审稿时长

9-18 weeks

期刊介绍： JVMS is a peer-reviewed journal and publishes a variety of papers on veterinary science from basic research to applied science and clinical research. JVMS is published monthly and consists of twelve issues per year. Papers are from the areas of anatomy, physiology, pharmacology, toxicology, pathology, immunology, microbiology, virology, parasitology, internal medicine, surgery, clinical pathology, theriogenology, avian disease, public health, ethology, and laboratory animal science. Although JVMS has played a role in publishing the scientific achievements of Japanese researchers and clinicians for many years, it now also accepts papers submitted from all over the world.