【摘要】 按照开产日龄将120只缙云麻鸭(母鸭)分为10个组(组距3 d),比较各组鸭的300 d总蛋数、300 d总蛋重及平均蛋重。结果表明,第3组(94~96 d)的300 d总产蛋重显著高于第1组(88~90 d)(P<0.05),但其他组别之间均无显著差异(P≥0.05);10个组别的300 d总产蛋数和平均蛋重也均无显著差异(P≥0.05)。更多还原

【Abstract】 To compare the total number, weight and average weight of the eggs laid during a period of 300 days,Jinyun ducks were divided to ten groups based on their first egg ages. The results indicate:the total weight of the eggs of the third group(94~96d)was significantly higher than that of the first group(88~90d)(P<0.05);no significant difference existed among other groups(P≥0.05);the difference in the total number and average weight of the eggs of the ten groups was not significant either(P≥0.05).更多还原