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探索免疫能力,HPA轴功能和断奶前乳牛小牛的表现之间的关系

Alessio Cotticelli¹, Giovanna Bifulco¹, Matilde Giombolini²

¹Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy.

Animals : an open access journal from MDPI

|January 8, 2025

概括

管理实践影响奶牛小牛的生长和健康. 疾病发生和个人住房对体重和每日体重增加产生负面影响,突显了压力,免疫力和表现之间的联系.

科学领域:

动物科学动物科学
兽医医学兽医医学兽医医学
内分泌学在内分泌学.

背景情况:

皮质醇和DHEA是压力和性的关键指标.
这些激素可以与免疫能力一起整合到性能指标中.
了解下丘脑-垂体-上腺 (HPA) 轴对于小牛的健康至关重要.

研究的目的:

调查管理对乳牛生长的转移效应.
探索HPA轴,免疫能力和预先断奶小牛的表现之间的关系.
评估早期生活经验对小牛发育的影响.

主要方法:

一个综合的回顾性和前性队列研究设计.
测量生长性能,疾病发生,头发类固醇 (皮质醇,DHEA,S) 和免疫球蛋白G (IgG).
管理因素,荷尔蒙特征和绩效指标之间的相关性分析.

主要成果:

断奶前的疾病和长时间的个人住房与60天后的体重有负相关性.
头发皮质醇与DHEA的比例在T2显示了与每日体重增加,血IgG和明显的吸收效率的负相关性.
静态负荷对免疫能力产生负面影响,而弹性与增长的改善有关.

结论:

管理实践,特别是疾病发病率和住房持续时间,显著影响小牛的生长.
HPA轴,免疫能力和生长性能在预先断奶的乳牛中相互联系.
早期生活压力和弹性标记对于优化小牛的发育和表现至关重要.

关键词:

静态负荷的全静态负荷.增长的表现,增长的表现.头发头发头发头发头发管理实践的管理实践.恢复力恢复力被动免疫的转移被动免疫的转移.福利服务福利服务

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