丝羽乌骨鸡孵化过程中种蛋的失重规律

Weight Loss of Silkes Hatching Egg in Incubation

本试验对丝羽乌骨鸡３个蛋重区间的种蛋孵化期失重率进行了系统测定。结果表明，乌骨鸡在兰州榆中地区１８ｄ的平均失重率为１６．８７％。种蛋孵化期内失重率与蛋重大小有关，失重率随蛋重减少呈上升趋势。未出雏蛋失水较高，４４．６ｇ以上的乌骨鸡种蛋，入孵蛋重与失重呈正相关关系。

The weight loss of Silkes'hatching egg in incubation was determined during 3intervals according to egg weight.The results showed that the average weight loss rate was 16.8% during l8 days in Yuzhong disitrict,Lanzhou,The weight loss rate was related to egg size andincreased with the decrease of egg weight.The norhached egg had more weight loss than hatchedegg,and the egg weighted above 44.6g had opsitive corrlation with weight loss.