【摘要】 金定鸭性二态表现在喙色、羽色、声音、体型、行为各方面,其性行为模式和其它家鸭相似,包括群体求偶、配对求偶和交配行为三方面,金定鸭性二态分化、性行为发育是生理成熟的前奏,雄性金定鸭的尾羽颜色性状与性二态分化、性行为发育速度和体型的大小具有一定的相关性,选择反应说明尾羽颜色性状有一定的遗传性,因此,建议将尾羽颜色、性二态分化和性行为发育速度也作为品系中雄鸭的选育内容之一。更多还原

【Abstract】 The sexual dimorphism in Jinding duck expresses in bill colour, plumage colour,voice,conformation and behaviour. The sexual behaviour patterns of Jinding duck,similar to other variety of domestic duck,include three categories:social courtship,pair courtship and cop-ulatory behaviour. The differentiation of sexual dimorphism and the ontogeny of sexual behaviour are prior to physiological maturity in Jinding duck. The rectrix. colour character is the relative character that relates with the differentialtion speed of sexual dimorphism and the ontogeny speed of sexual behaviour,and with the conformation size in Jinging drake. The selection response indicates that rectrix colour character is a genetic character. As the results, the rectrix colour character, the differentiation speed of sexual dimorphism and the ontogeny speed of sexual behaviour can be proposed as some of the drake selection characters in Jinding duck strains.更多还原