埃塞俄比亚南wollo地区holla羊的牧群管理和饲养实践

Adina Akale, T. Mengesha, A. Getu, S. Abegaz
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摘要

本研究旨在对小农经营条件下南沃罗区Kalu和Worebabo地区Holla羊生产系统的选育目标、性状偏好和主要制约因素进行有组织的研究。该研究是基于半结构化问卷,重点小组讨论进行的。二级数据源分析和实地观察被用来产生所需的信息。此外,采用简单随机抽样的方法,选取180名羊主。采用简单描述性统计、排序试验和片方检验。养羊的主要目的是资产开发(创收),其次是繁殖目的,指数分别为0.365和0.201。卡鲁和沃雷巴布的公羊指数分别为0.258和0.207,两区均以体型/外观为首选。在研究地区,淘汰劣质羊、断奶、记录保存、在合适的年龄阉割公羊以及在疾病爆发前提供定期疫苗接种的做法很差。Kalu和Worebabo地区公羊初性成熟年龄分别为7.3±2.17和7.23±1.34个月,母羊分别为7.9±1.87和5.8±1.16个月。病害流行和遗传潜力是整个研究区的主要生产制约因素。为了尽量减少品种改良计划的失败,重要的是让农民考虑到现有的育种实践、管理系统和社区的性状偏好以及目标动物的多用途作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Herd management and breeding practices of holla sheep owners in south wollo zone, Ethiopia
This study was aimed to generate organized information on selective breeding objectives, trait's preferences and major constraints of the Holla sheep production system in Kalu and Worebabo districts of South Wollo Zone under small holders' management conditions. The study was performed based on the semi-structured questionnaire, focused group discussions. Secondary data source analysis and field observations were used to generate the required information. In addition, simple random sampling technique was used to select 180 sheep owners. Simple descriptive statistics, ranking trial and chip-square test was considered. The primary purpose of keeping sheep was asset development (income generation) followed by breeding purposes with the index value of 0.365 and 0.201, respectively. Body size/Appearance was the primary preference in both districts for breeding ram index value of 0.258 and 0.207 Kalu and Worebabu, respectively. In the study areas, culling inferior sheep, weaning, record keeping, castrating ram at right age and provision of regular vaccination before disease out breaks were poorly practiced. Age at first sexual maturity of male sheep was 7.3±2.17and 7.23±1.34 months while for females 7.9±1.87 and 5.8±1.16 months in Kalu and Worebabo district, respectively. Disease prevalence and genetic potential were the major production constraints in the entire studied districts. In order to minimize the failure of breed improvement programs it is important to involve farmers considering the existing breeding practices, management systems and trait preferences of the community and the multipurpose roles of targeted animals.
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