埃塞俄比亚大型反刍动物(牛)的繁殖性能和浪费综述

G. Tadesse
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引用次数: 3

摘要

本文的目的是回顾埃塞俄比亚大型反刍动物(牛)的繁殖性能和浪费。尽管埃塞俄比亚的母牛数量很高(55.38%(3200万头)),但生产和繁殖性能(关键因素)有待提高。在现代奶业中,繁殖性能是决定奶牛生产效率最重要的指标。尽管初产年龄、初产年龄、开工日、产犊间隔和每次受孕次数是最重要的因素;管理和奶牛水平因素也决定奶牛的繁殖性能。土牛初产龄、初产龄和产犊间隔分别为34.4±2.28 ~ 56.16±7.56个月、33.9 ~ 57.69±1.11个月和13.59±0.26 ~ 26.04个月。由于环境、遗传、疾病和管理因素,存在生殖能力的浪费。因此,为了提高本地品种的生产力和产量,详细了解当前的表现,识别挑战和机遇与因果因素是非常重要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reproductive Performance and Wastage in Large Ruminant (Cattle) in Ethiopia-Review
The objective of this paper is to review the reproductive performance and wastage in large ruminants (cow) in Ethiopia. Though the number of female cattle in Ethiopia is high (55.38% (32.0 million)), the production and reproductive performance (crucial factor) needs to be improved. For modern dairy industry, reproductive performance is the most important to determine the efficiency of dairy cattle. Even though, age at first service, age at first calving, day’s open, calving interval and number of services per conception are the most factors; management and cowlevel factors also determine the reproductive performance of dairy cow. The indigenous cattle of age at first service, age at first calving and calving interval is 34.4±2.28 to 56.16±7.56 months, 33.9 to 57.69±1.11months and 13.59±0.26 to 26.04 months, respectively. There is wastage of reproductive due to environmental, genetic, disease and management factors. So, to improve the productivity and production of native breeds, detail understanding of current performance, identifying challenges and opportunities with the causal factors is very important.
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