Development of Fertility Improvement Program in Dairy Cows based on Postpartum Reproductive Monitoring System

基于产后繁殖监测系统的奶牛繁殖力提高方案开发

• 批准号: 20580353
• 负责人: ISOBE Naoki
• 金额: $ 2.83万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20580353/
• 关键词: 乳牛; 分娩後生殖機能回復; 乳汁中progesterone, AI; ET; AI; 受胎率; 乳汁中progesterone; 分娩後卵巣機能回復; 胚移植; 人工授精; 牛乳中progesterone; Progesterone; 分娩後初回授精

This study was aimed to develop a novel reproductive management program based on postpartum reproductive monitoring using milk progesterone analysis. A series of experiments on the reproductive monitoring were carried out on several commercial dairy herds in Japan and Germany. The results showed that the monitoring-based reproductive management was useful to improve reproductive efficiency. Use of embryo transfer,, in particular, for the first postpartum breeding in lactating cows with normal recovery of reproductive activities was likely to improve fertility. For the further improvement nutritional monitoring in addition to reproductive monitoring is suggested to be promising.

本研究旨在开发一种基于使用乳汁黄体酮分析进行产后生殖监测的新型生殖管理计划。在日本和德国的几个商业奶牛群上进行了一系列生殖监测实验。结果表明，基于监测的生殖管理有助于提高生殖效率。使用胚胎移植，特别是对于生殖活动正常恢复的泌乳牛的首次产后配种，可能会提高生育能力。为了进一步改善营养监测，除了生殖监测外，建议还有希望。

项目成果

Analysis of some factors affecting fertility levels in a high-producing dairy herd in south-western Japan.

日本西南部高产奶牛群生育水平影响因素分析。

• 发表时间: 2010
• 期刊: Anim Sci J. 81(4)
• 作者: Yusuf M;Nakao T;Long ST;Gautam G.
• 通讯作者: Gautam G.

Prevalence of postpartum uterine infection and itsimpact on subsequent reproductive performance of dairy cows

奶牛产后子宫感染流行情况及其对后续繁殖性能的影响

• 发表时间: 2009
• 期刊: Animal Reproduction Science 116
• 作者: G Gautam;Nakao T;Yusuf M;Koike K
• 通讯作者: Koike K

Characteristics of prolonged luteal phase in high-producing dairy cows postpartum

高产奶牛产后黄体期延长的特点

• 发表时间: 2010
• 作者: Nakao;T.
• 通讯作者: T.

The incidence of repeat breeding and subsequent reproductive performance in high-producing dairy cows

高产奶牛重复配种的发生率和随后的繁殖性能

• 发表时间: 2008
• 作者: Nakanishi S;et al.;中尾(敏)
• 通讯作者: 中尾(敏)

世界的な高泌乳牛の繁殖成績低下の現状と対策

全球高产奶牛繁殖性能下降现状及对策

• 发表时间: 2011
• 期刊: 臨床獣医
• 作者: 山口仁孝;村松直美;森剛志;坂口末廣;中尾敏彦
• 通讯作者: 中尾敏彦