砾石对蛋鸡生产性能的影响

The Effect of Gravel on Production Function of Egg Chickens

目前,蛋鸡生产期砾石与日粮最佳比例没有统一说法。常出现因砾石比例不当而引起鸡群消化、吸收障碍,营养不良,出现薄壳蛋、软皮蛋,产蛋量下降,甚至死亡。通过25周龄产蛋鸡1200只,日粮内加入不同比例砾石,进行为期6周的饲喂观察,将蛋鸡对砾石与日粮不同比例的反应,生产性能,临床症状等进行了分析。证明砾石占日粮8%为产蛋鸡的最佳比例,这样既经济,又可获得最好的养鸡效益。

Nowadays, there has not been a general agreement on the perfect ratio of the effect of gravel to feed during the period of egg production. So gravel out of proportion to feed often results in indigestion and malnutrition of hens, thin-shell eggs, soft eggs, decline of egg production and even death. By feeding and observing 1,200 Laying hens for 6 weeks with different proportions of gravel to feed, we analyze the production ability and clinical symptoms of layers. Through the test, we can get the conclusion that 8 % is the perfect ratio, which is both economical and beneficial to keepers.