白壳蛋鸡不同品系的配合力测定

1979-1981年分别对D、E、B、C品系和D、E、S品系以及D、E、N、S品系用完全双列杂交方法测定其主要性状的配合力.结果表明,E系的产蛋量和蛋重的一般配合力最高,体重的一般配合力最低,具有较高的饲料转化率和较好的蛋质,是一个较理想的母本素材. 杂交组合NE产蛋量高,具有显著的杂种优势,蛋重大,料蛋比低,是一个优秀的杂交组合,可作为配套品系杂交鸡向商品场和养鸡专业户推广.

THE TEST OF COMBINING ABILITY OF DIFFERENT LINES IN WHITE EGGSHELL CHICKENS

The test of combining ability has been carried out in the lines D, E, B,C in 1979, D, E, S in 1980 and D, E, N, S in 1981, respectively, according to the complete diallel crossing scheme. Experimental results showed that, of these lines, general combining abilities of line E were the highest in number of eggs and egg weight and that for body weight the lowest. Line E also exhibited better egg quality and higher food conversion ratio. These data demonstrated that line E is desirable to be used as maternal line. The N×E hybrid manifested significant hybrid vigor in number of eggs,egg weight and food conversion ratio. Therefore, it is a superior hybrid that should be propagated to commercial poultry farms.