埃塞俄比亚Gedeo农林业奶牛的育种实践和性状偏好

Q4 Veterinary
D. Haile, B. Tesfahun
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引用次数: 1

摘要

该研究旨在确定埃塞俄比亚南部奶牛生产者的育种做法和性状偏好。采用简单随机抽样(SRS)方法选取具有代表性的样本家庭。采用横断面调查和结构化问卷法,收集了农户饲养奶牛的目的、畜群组成、奶牛来源、性状偏好和养殖方式等方面的数据。数据分析采用SPSS 27统计软件,分类变量比较采用卡方法。在小牛、小母牛和公牛的平均数量上,蓝区牧群的组成与其他地区有显著不同。与其他地区相比,Yirgachefe地区的平均奶牛数量有很大差异。大多数农民(81.67%)的品种偏好是杂交公牛(泽西和荷斯坦弗里斯兰)。农场里没有足够的公牛;种群中有一头繁殖公牛的比例仅为21.7%,种群中公牛的主要来源是牧区和邻近地区。与自然交配相比,受访者更倾向于人工授精(96.1%)。产奶量、外观和基因型是选择公羊的重要性状,而基因型、外观和生长速度是选择公羊的首选性状。农民的养殖目标是提高产奶量和增加现金收入。因此,建议在研究区建立以村庄为基础的奶牛遗传改良配种计划,以克服公牛短缺的问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Breeding practices and traits preference in dairy cattle in Gedeo agroforestry of Ethiopia
The study was conducted to identify breeding practices and traits preferences of the dairy cattle producers in the southern part of Ethiopia. Representative sample households were selected by SRS (Simple Random Sampling) techniques. A cross-sectional survey with a structured questionnaire was used to collect the data on the purpose of keeping dairy cattle, herd composition, source of dairy cattle, trait preference, and breeding practices performed by the farmers. The data were analyzed using statistical software SPSS 27, and chi-square was used to compare categorical variables. The herd composition of the Bule district is significantly different from the rest of the districts in the mean number of calves, heifers, and bulls. The Yirgachefe district significantly differs in the mean number of cows compared to other districts. The breed preference of most farmers (81.67%) is cross-bred bulls (Jersey and Holstein Frisian). There are not enough bulls on the farms; only 21.7% of them have a breeding bull, and the primary sources of bulls in the study community are the grazing areas and the neighbors. Respondents preferred artificial insemination (96.1%) to natural mating. Milk yield, appearance, and genotype were important traits in selecting a dam, whereas genotype, appearance, and fast growth rate were the most preferred traits in sire ranking. The farmers' breeding objectives were to improve milk production and increase cash income. Therefore, establishing a village-based mating program for the genetic improvement of dairy cattle in the study area is recommended to overcome the shortage of bulls.
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来源期刊
Online Journal of Animal and Feed Research
Online Journal of Animal and Feed Research Veterinary-Veterinary (all)
CiteScore
0.90
自引率
0.00%
发文量
41
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