阿坝州藏鸡种蛋的蛋形指数和蛋重对孵化效果的影响

Influence of Egg-shaped Index and Egg weight of Aba Tibetan Chicken on Hatching Effect

为探讨阿坝州藏鸡种蛋的蛋形指数、蛋重对孵化效果的影响,本试验对阿坝州藏鸡三个品系的种蛋（共1 937枚）按蛋形指数（纵径/横径）不同分为A（蛋形指数〈1.30）、B（蛋形指数1.30~1.35）、C（蛋形指数〉1.35）3组,并分别对3组的蛋形指数、蛋重、孵化情况等指标进行统计分析。结果显示：阿藏1系种蛋的蛋形指数均值为1.35,蛋重均值为54.64 g;阿藏2系种蛋的蛋形指数均值为1.34,蛋重均值为55.67 g;阿藏3系种蛋的蛋形指数均值为1.34,蛋重均值为54.94 g;阿藏1系、阿藏2系B组的受精蛋孵化率最高,分别为94.48%、94.77%;阿藏3系C组的受精蛋孵化率最高,为90.48%。

In order to study the effects of egg-shaped index and egg-weight of Aba Tibetan chicken on incubation, a total of 1 937 eggs of three strains of Aba Tibetan chicken were divided into three groups ac- cording to egg-shaped index （longitudinal diameter/width ）, which was A （ egg-shaped index〈l.30 ）, B （ egg- shaped index was 1.30-1.35）, C （egg-shaped index〉1.35）. In addition, the egg-shaped index, egg weight, incubation index were analyzed. The results showed that Aba Tibetan chicken series one＇s egg-shaped index was 1.35, average egg weight was 54.64g, Aba Tibetan chicken series two＇s egg-shaped index was 1.34, average egg weight was 55.67g, Aba Tibetan chicken series three＇s egg-shaped index was 1.34, average egg weight was 54.94g. Besides, the B group of Aba Tibetan chicken one and two＇s fertilized eggs hatching rate were highest （94.48% and 94.77% respectively）, the C group of Aba Tibetan chicken series three＇s fertilized eggs hatching rate was highest（90.48% ）.