保健砂对文昌鸡产蛋性能及蛋壳品质的影响

为探讨保健砂在蛋鸡生产中的合理应用，将450只文昌鸡（24周龄蛋鸡）随机分为5组，每组90只。对照组饲喂基础日粮和添加剂，试验组饲喂基础日粮、添加剂和保健砂，各试验组添加比例分别为2％、4％、6％和8％。同期对照组与试验组Ⅳ的产蛋率、料蛋比差异均显著（P<0.05），对照组与试验组Ⅰ、Ⅱ、Ⅲ的产蛋率、料蛋比差异不显著（P>0.05）,平均蛋重、蛋壳厚度以及破损率各试验组与对照组对比差异均不显著（P>0.05）。试验结果说明饲料中添加4％～6％保健砂，有助于提高文昌鸡的产蛋率、减少饲料消耗，提高养鸡生产经济

Effect of Health Sand on Egg-laying Performance and Egg Shell Quality of Wenchang Chicken

In order to investigate the reasonable application of health sand in rations for egg laying chicken, 450 Wenchang laying hens (24-week-old) were divided into 5 groups randomly, 90 hens each group. The control group was fed with basic ration and additives, and the trial groups were fed with basic ration, additives and health sand at the respective proportions of 2%, 4%, 6% and 8%. Obvious difference was observed in egg laying rate and feed/egg ratio between the control and trial group IV (P <0.05), but not between the control and the trial groups I, II and III (P>0.05). No significant difference (P>0.05) was found in average egg weight, egg shell thickness and egg breaking rate between the control group and the trial groups I-IV. The results showed that addition of 4% to 6% health sand into the ration increased Wenchang chicken egg laying rate, reduced feed consumption and increased the economic benefits of chicken production.