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首页> 外文期刊>Tropical Animal Health and Production >Participatory definition of breeding objectives for sheep breeds under pastoral systems-the case of Red Maasai and Dorper sheep in Kenya
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Participatory definition of breeding objectives for sheep breeds under pastoral systems-the case of Red Maasai and Dorper sheep in Kenya

机译：牧场制度下绵羊品种的育种目标的参与性定义-以肯尼亚的红马赛人和多珀羊为例

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摘要

Crossing local breeds with exotic breeds may be an option for increased livestock productivity. However, there is a risk for endangerment of the local breeds. One such case is in Kenya where the imported Dorper breed is used for crossbreeding with Red Maasai sheep. The aim of this study was to investigate farmers' trait preferences as a basis for determination of breeding objectives for Red Maasai and Dorper sheep at two sites, Amboseli and Isinya, in Kenya. Within their own flock, each farmer identified three ewes representing the best, average and poorest within each breed group: Red Maasai, Dorper and Crosses. Farmers gave reasons for their ranking. Body measurements and weights were also taken. At the harshest site, Amboseli, differences between breed groups in body weight were small and breeds were equally preferred. In Isinya, where environmental conditions are better and farmers are more market oriented, Dorper and Crosses had significantly higher body weights and market prices and were thus preferred by the farmers. Red Maasai were preferred for their maternal and adaptive traits. Breeding objectives should emphasize growth traits and milk production in both breeds at both sites. Body condition needs to be specifically considered in the breeding objectives for sheep in Amboseli, whereas adaptive traits need to be generally emphasized in Dorper.
机译：将本地品种与外来品种杂交可能是提高牲畜生产率的一种选择。但是，存在危害本地品种的风险。在肯尼亚，进口杜泊（Dorper）品种与红马赛（Maasai）绵羊进行杂交就是其中一个例子。这项研究的目的是调查农民的性状偏好，以此作为确定肯尼亚安博塞利和伊西尼亚两个地点的红马赛人和多珀羊的繁殖目标的基础。在他们自己的羊群中，每个农民确定了三种母羊，分别代表每个品种组中的最好，平均和最差：红马赛，多珀和克罗斯。农民给出了排名的原因。还进行了身体测量和体重测量。在最严酷的地方，安博塞利，不同品种的体重差异很小，并且同样优先选择品种。在伊辛亚（Isinya），环境条件更好，农民更加注重市场，Dorper和Crosss的体重和市场价格明显更高，因此受到农民的青睐。红马赛人因其母性和适应性特征而受到青睐。育种目标应强调两个地点两个品种的生长特性和产奶量。在安博塞利羊的繁殖目标中，需要特别考虑身体状况，而在多珀市，通常需要强调适应性状。

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