| 摘要: |
| 将365日龄的尼克红父母代蛋种鸡200羽,随机分成4组,对照组饲喂基础日粮,试验Ⅰ,Ⅱ,Ⅲ组在基础日粮基础上分别添加100,150和200 mg/kg碘化酪蛋白,为期60d,研究碘化酪蛋白的促产蛋效果并探讨其机理.结果表明,试验Ⅰ组效果最佳,产蛋率提高11.12%(P<0.05),料蛋比降低8.19%(P＜0.05),同时蛋壳厚度增加8.57%(P＜0.05)和蛋壳相对重增加12.13%(P＜0.05),破异常蛋率降低67.20%(P＜0.01).孵化效果显示,饲料中添加碘化酪蛋白对种蛋的孵化效果无明显影响. |
| 关键词: 碘化酪蛋白 蛋种鸡 生产性能 孵化效果 |
| DOI： |
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| 基金项目:天津津发兽药公司资助项目(). |
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| Effect of thyroprotein on laying performance in breeder hens |
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| Abstract: |
| The experiment was conducted to study the effect of thyroprotein on laying performance,egg quality and hatching achievement in breeder hens,and discuss the mechnism of the effects.200 Nick Red egg breeder hens were divided into four groups,the control group received the basal diet,the treatmentⅠ,Ⅱ,Ⅲ groups received the same basal diet supplemented with 100 mg/kg,150 mg/kg and 200 mg/kg thyroprotein for 60 days.The results were as followings.The treatmentⅠgroup achieved very good results,the additives improved hens laying performance,compared with the conrol,the treatment Ⅰ group increased rate of laying by 11.2% (P＜0.05),and decreased egg mass conversion by 8.19% (P＜0.05),increased eggshell thickness and relative eggshell weight by 8.57% (P＜0.05) and 12.13% (P＜0.05) respectively.The hatching result indicated that thyroprotein supplement had no significan effect on laying performance. |
| Key words: thyroprotein egg breeder hen laying performance hatching result |
