正阳三黄鸡产蛋初期蛋重、蛋形指数变化规律研究

摘要

The egg weight, egg vertical diameter and horizontal diameter of eggs laid by Zhengyang Three-yellow broilers after first egg were measured for 70 days to study the egg weight and egg shape index developmental laws,their correlation analysis was also made, as well as the effect of consecutive laying period on egg shape index. The results showed that the egg weight,egg vertical and horizontal diameter increased with the growth of age, while the egg shape index decreased with the growth of age,and the four indexes were extremely correlated with each other,but the consecutive laying period had insignificant influence on egg shape index.%对正阳三黄鸡开产后70 d内的蛋重、蛋纵径、蛋横径进行了测量,研究正阳三黄鸡的蛋重、蛋纵径、蛋横径在开产初期的变化规律,并对产蛋初期蛋重、蛋纵径、蛋横径、蛋形指数进行相关分析,以及连产周期对蛋形指数的影响进行分析.结果表明:蛋重、蛋纵径、蛋横径在产蛋初期随着日龄的增加而增加,蛋形指数却随着日龄的增加而减小,且四者之间均存在着极显著的相关,而连产周期对蛋形指数的影响不显著.