大豆黄酮对产蛋后期地方蛋鸡生产性能、蛋品质和血浆激素指标的影响

摘要

This experiment was conducted to investigate the effects of dietary daidzein on performance,egg quality and plasma hormone indices of local laying hens during late laying cycle.A total of 192 fifty-five-weekold Rugao yellow laying hens with similar body weight and laying rate were randomly assigned to 2 groups with 6 replicates in each group and 16 hens in each replicate.Hens in the control group were fed a basal diet,the others in the experimental group were fed the basal diet supplemented with 60 mg/kg daidzein.The pre-test period lasted for 2 weeks and the trial period lasted for 14 weeks.The results showed as follows:1) the laying rate of experimental group was significantly higher than that of control group (P＜0.05),however,the mortality,average egg weight,average daily feed intake and ratio of feed to egg had no significant differences compared with the control group (P＞0.05).2) The egg Haugh unit of experimental group was significantly higher than that of control group (P＜0.05),however,the other egg quality indices had no significant differences compared with the control group (P＞0.05).3) The plasma estradiol content of experimental group was significantly higher than that of control group (P＜0.05),the plasma follicle stimulating hormone content of experimental group was significantly lower than that of control group (P＜0.05),however,the other plasma hormone indices had no significant differences compared with the control group (P＞0.05).In conclusion,dietary supplemented with 60 mg/kg daidzein can improve performance,egg quality and plasma hormone indices of local laying hens during late laying cycle.%本试验旨在研究饲粮中添加大豆黄酮对产蛋后期地方蛋鸡生产性能、蛋品质和血浆激素指标的影响.试验选用体重及产蛋率相近的55周龄如皋黄鸡蛋鸡192只,随机分为2组,每组6个重复,每个重复16只鸡.对照组饲喂基础饲粮,试验组饲喂在基础饲粮中添加60 mg/kg大豆黄酮的试验饲粮.预试期2周,正试期14周.结果表明:1)试验组产蛋率显著高于对照组(P＜0.05),试验组死亡率、平均蛋重、平均日采食量和料蛋比与对照组相比较差异不显著(P＞0.05).2)试验组鸡蛋哈氏单位显著高于对照组(P＜0.05),试验组其他蛋品质指标与对照组相比较差异不显著(P＞0.05).3)试验组血浆雌二醇(E2)含量显著高于对照组(P＜0.05),试验组血浆卵泡刺激素(FSH)含量显著低于对照组(P＜0.05),试验组其他血浆激素指标与对照组相比较差异不显著(P＞0.05).综上所述,饲粮添加60 mg/kg大豆黄酮能改善产蛋后期地方蛋鸡生产性能、蛋品质以及血浆激素指标.