维生素C对蛋鸡的生产性能及新城疫抗体水平影响的研究

Effects of Vc on the egg performance and HI of laying hens

本研究探讨在常温下维生素Ｃ对蛋鸡的产蛋性能及新城疫抗体水平的影响。结果表明在日粮中添加维生素Ｃ．产蛋量、产蛋率、破蛋率和蛋重没有明显的提高，而畸形蛋率有所上升。因此常温下在日粮中不必添加维生素Ｃ。日粮中添加维生素Ｃ对蛋鸡新城疫抗体水平有较复杂的反应。

In this paper, 250 Lohmann brown laying hens at 29 weeks of age were divided into 5 groups. Diets were addedwith 100, 200, 300and 0 ppm Vc,respectively. The effects of Vc on the egg production and HI of laying hens between 1426 C were determined, The results showed that Vc had not significant effects on the rates of egg production and eggweight,but the rate of abnormal eggs significantly increased. Vc had a conplex effect on HI.