关键词: 建昌鸭, 羽色遗传, 天府肉鸭, 肉用性能, 鸭[49ME]

Abstract: The experiment studied the inheritance of plumage color in Jianchang duck and vagor by wag of strains crosses. The results indicated that Jianchang white, genotype cc, is completely controlled by recessive white gene locus on automal chromosome which prossesses recessive epistasis-effect. The genotypes are C_E_M_, C_E_M'_and CCeeM'- for yellow plumage strain(Y strain), dark plumage strain(D strain) and white-breast black plumage strain(B strain)respectively. The gene frequency for recessive white gene(c), black-extended gene(E) of Y and D strains are obtained:0.1224, 0.0959 for Y and 0.0476, 0.1682 for D strain. Meat production of Jianchang can be siguificantly improved by way of its plumage strain and greattype meat drake. Especially, the combinations of bothGW and TW are best, GW(Tianfu drake×Jianchang white duck) is beter.

Key words: JIANCHANG DUCK, PLUMAGE COLOR INHERITANCE, MEAT PRODDCTIOM, DUCKS