【摘要】 以仙湖3号鸭A系和B系及二系鸭的正反交作饲养对比试验,结果表明:杂交后代的生长速度、饲料转化率及胸腿肌率均比纯系亲本高,杂交效果明显,且正交效果更好,利用正交进行商品生产是一个理想的杂交组合。更多还原

【Abstract】 The experiment was carried out with A-strain B-strain and their hybird (AB and BA)in XianHu No. 3 (ducks). The result indicated that the growth rate,feed convertion rate and breast - thigh meat percent of the hybird (AB and BA)were superior to those of A-strain and B-strain. The hybird displayed distinct heterosis in growth rate and feed conversion efficiency,and the direct crossbred (AB)was superior to the reciprocal crossbred (BA).The direct cross was the ideal cross combination in XianHu No. 3 (Ducks) production.更多还原