Abomasal curd formation of colostrum and gamma globlin(IgG) absorption in the newborn calves.

初乳皱胃凝乳的形成和新生犊牛丙种球蛋白（IgG）的吸收。

• 批准号: 23580418
• 负责人: OKADA Keiji
• 金额: $ 3.66万
• 依托单位: Iwate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23580418/
• 关键词: 子牛; 第四胃; カード形成; 移行免疫; 超音波検査; 初乳給与技術; 超音波診断

Passive immune protection in ruminants is achieved by the ingestion and absorption of adequate amounts of colostral immunoglobulins. The objective of this study was to determine the abomasal curd formation of colostrum and the effect of abomasal curd formation on gamma globlin(IgG) absorption in the newborn calves. The results of this study showed that (1) the colostrum coagulate into the curd in the abomasum and (2) nipple feeding showed better curd formation and higher serum IgG concentration compare to stomach tube feeding. We could provide new evidence of abomasal curd formation in colostrum-fed calves and an effective method for facilitating abomasal curd formation and transfer of passive immunity in new-born calves in this study.

反刍动物的被动免疫保护是通过摄入和吸收足量的初乳免疫球蛋白来实现的。本研究的目的是确定真胃凝乳的形成和真胃凝乳的形成对新生小牛γ球蛋白（IgG）吸收的影响。本研究结果表明：（1）初乳在皱胃中凝结成凝乳;（2）乳头喂养比胃管喂养具有更好的凝乳形成和更高的血清IgG浓度。本研究为初乳犊牛真胃凝乳的形成提供了新的证据，也为促进真胃凝乳的形成和新生犊牛被动免疫的传递提供了有效的方法。