In the early generations the selection should not be too strict, and 15% selection intensity was suitable in F2 generation, but 10% was suitable in F3 and F4.
早期世代蛋白质含量的选择强度不宜太大，F2代的选择率以15%为宜，而F3和F4代的选择率以10%为宜。
The early selection of one generation for Huainan Spotted Black Yellow chicken by synthetic selection index of multisecondary traits on blood biochemical indexes were conducted.
国内外畜牧工作者都十分重视利用雏鸡血液生化指标进行早期选种的研究。
The early selection of one generation for Huainan Spotted Black Yellow chicken by synthetic selection index of multisecondary traits on blood biochemical indexes were conducted.
国内外畜牧工作者都十分重视利用雏鸡血液生化指标进行早期选种的研究。
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