【摘要】 三元杂种鸭——“番北金”鸭(番鸭ד北金”),体型和羽色均介于两亲本之间,偏向父本,其产肉性能比二元杂种鸭——“半番”鸭(番鸭×金定鸭)具有更强的杂交优势,雌雄平均体重超过双亲及“半番”鸭。更多还原

【Abstract】 In the article,the growth and productivities of two hybrid ducks,"Fan" duck (Cairina moschata)×"Tubei" duck ("Beijing" duck × "Jinding" duck ) and "Fan" duck × "finding" duck,were compared.The main results are as follow:1.The bodyform and the mean body weight of the "Fanbeijin" duck are superior to its parents and "Banfan" duck.The hetcrosis rate are 23.78% and 24.89% respectively.2 .The growth rate of the "Fanbeijin" duck,especially at carlp stage of the young ducks,is more rapid than of the "Banfan" duck,while in 10-60 days,their average relative growth rate are 76.10% and 67.88%.3.The feed consumption of these two hybrid ducks is not significant difference.(p>0.05).As to the feed cansumption of two hybrid ducks on the market day weight ( 1.75kg ),the "Fanbeijin" duck is 1:2.45,the "Banfan" duck is 1:2.76.更多还原