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The clarification of mechanism and the establishment of preventative method of white scours in new bone calves of dairy cows

奶牛新骨犊牛白痢发病机制的阐明及预防方法的建立

基本信息

批准号：
13660278
负责人：
SHIGA Akio
金额：
$ 2.3万
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：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13660278/
关键词：
Cows New bone calfe White scours Feed component Substitute milk Fatty acid component Mineral balance Vitamin A, E 母乳性白痢牧草ミネラル含量消化不良

项目摘要

The objective of those experiments were to study the clarification of mechanism and the establishment of preventative method of white scours in new bone calves of dairy cows.1. In the census taking by dairy farmers for the occurrence of white scours in new bone calves, they answerd that white sours had often occurenced and sugested that it might be due to feeding of substitute milk. As the preventive measure of white scours, it was proposed that 【○!1】the prescription of evacutants, 【○!2】the change of products of white scours, 【○!3】the suckling of colostum preserved freezingly, 【○!4】the suckling of tepid water, 【○!5】the prescription of antibiotics, and so on.2. In analysis of substitute milks that might be due to occurrence white scours, those were lower in the ratio of saturated fatty acids to unsaturated fatty acids in milk fat than natural milk. Mineral contents (K, C1, P) were higher in substitute milks in natural milk. pH were lower in substitute milks.3. In comparison of milk components in cows fed on a concentrates-based diet or a pasture-based diet, milk of when cows were fed on a pasturebased diet higher in the rates of C_<18:1> and C_<18:2> in unsaturated fatty acids of milk fat than fed on a concentrates-based diet. In mineral contents in milk, K and C1 were higher, but Na was lower in a pasuture-based diet.It is likely that natural milk of cows fed on a pasuture-based diet is a practical means of preventing white scours in new bone calves.

本试验旨在研究奶牛新骨犊牛白色腹泻的发生机理及预防方法的建立.奶农对新生骨犊牛白色腹泻病的调查结果表明，白色苏尔酸是经常发生的，并认为这可能是由于代乳品的喂养造成的。作为白色冲刷的预防措施，提出了[○！1]疏散剂的处方，[○！2]白色洗涤产品的变化，[○！3]冷冻保存的初乳的吮吸，[○！4]温水的吮吸，[○！5]抗生素的处方等。2.在分析可能是由于发生白色腹泻的代乳品时，发现其乳脂中饱和脂肪酸与不饱和脂肪酸的比例低于天然乳。天然乳中的矿物质含量（K、C1、P）以代乳品较高。代乳品的pH值较低.对精料日粮和牧草日粮奶牛乳成分的比较表明，牧草日粮奶牛<18:1><18:2>乳脂肪中不饱和脂肪酸的C_和C_的比例高于精料日粮奶牛。牛奶中的矿物质含量，钾和C1较高，但钠较低，在pasuture为基础的饮食。这可能是一个实用的手段，防止白色腹泻的牛饲喂pasuture为基础的饮食的天然牛奶在新的骨头小牛。