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Desired-gain selection indices for improving performance of two Tanzania local chicken ecotypes under intensive management
Breeding desired gain local chicken selection indices
2011/1/10
A study was carried out to evaluate various desired-gain selection indices (Yamada index) in improving performance of two chicken ecotypes of Tanzania viz. Kuchi and Tanzania Medium (Medium).
![](http://www.firstlight.cn/upload/imgfile/20070924c/82542a26011.gif)
Exploring farmer-herder relations and conflict management in Niger(图)
farmer-herder conflict management environmenta
2006/11/27