| An experiment was conducted with N3 Yangzhou goose to study the early growth- development law, slaughter performance, and muscle quality and heredity stability of Yangzhou goose. Animal growth model, plasma enzyme activity and random amplified polymorphism DNA (RAPD) were used in the studies. The aim is to explore genetic marker, which are used as measures for selection in the early stage and be used to examine for some properties of living bodies. The results indicated that: 1 .The growth-development law of Yangzhou goose is fit to the Gompertz model (R2=0.99965). This animal growth model can describe the growth-development law of Yangzhou goose in the early stage of growth very well. The inflexion is 5.1 5week and 1659.66g. the terminal body weight is 451 0.34g, and the theoretical body weight at l0week is 3508.87g. The growth standard of Yangzhou goose can be set up according to this model, which will provide theoretical base for further breeding and indexes affiliated with it. 2.Slaughter performance of Yangzhou goose is good at the 1 Oweek age: the average dressing percentage is 87.7%, semi-eviscerated carcass weight rate is 76.4%, eviscerated carcass weight rate is 66.6%, abdomen fat weight rate is 2.7%, breas~-1eg muscle weight rate is 26.1%. Besides eviscerated carcass weight rate and abdomen fat weight rate are significant different between male and female (p |
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