作　　者： ; ; ; ;

机构地区： 西北农林科技大学动物科技学院

出　　处： 《山东家禽》 2003年第8期10-11,共2页

摘　　要： 本研究将北京鸭Z1系种蛋分为小蛋组(82～92g)、中蛋组(92～105g)和大蛋组(106～24g),分别研究蛋重与受精率、孵化率、蛋形指数及初出重等性状的关系。结果表明:蛋重对受精率的影响差异不显著(P>0.05),但随着蛋重增大,受精率有增大的趋势;孵化率随蛋重的增加而显著减小(P<0.05或P<0.01);蛋重对蛋形指数的影响不显著(P>0.05);雏鸭出生重受蛋重的正向影响差异极显著(P<0.01)。综合以上结果,本文得出:北京鸭Z1系适宜孵化的蛋重范围是82～105g。 Breeding eggs from Beijing duck type Zl were divided into three groups,small one (82~92g weight),middle one (92~105g) and big one (106~124g),to determine the Relationships of egg weight of Beijing duck with fertility, hatching rate, egg shape index and body weight of newly hatched offspring. The results showed that egg weight had no distinct affect on fertility and egg shape index, but with increasing weight of egg, the fertility rate increased relatively, the hatching rate dramatically reduced. However, the body weight of newly hatched offspring changed positively with the egg weight. These data suggested the breeding egg ranging from 82g to 105g was suitable for hatching.

关 键 词： 北京鸭 蛋重 受精率 孵化率 蛋形指数 初出重

领　　域： [农业科学] [农业科学]