日粮中添加大豆黄酮对鹌鹑生产性能和血液中激素水平的影响

本试验采用了 3个生产阶段的蛋用鹌鹑。 35日龄开产期蛋用鹌鹑日粮中添加 3mg/kg大豆黄酮 ,鹌鹑的产蛋率和血液中T3 水平均发生显著性提高 (P <0 0 5 )。 7月龄蛋用鹌鹑日粮中添加 3mg/kg大豆黄酮 ,可显著提高鹌鹑的产蛋率 (P <0 0 5 )和血液中T3 水平 (P <0 0 5 ) ;而日粮中添加 6mg/kg大豆黄酮则使鹌鹑的产蛋率显著下降 (P <0 0 5 )。 12月龄蛋用鹌鹑日粮中添加 6mg/kg大豆黄酮 ,鹌鹑的产蛋率提高 10 3% (P <0 0 1) ;血液中T3 、T4和IGF 1水平分别提高 34 8% (P <0 0 1)、2 7 6 % (P <0 0 5 )和 30 8% (P <0 0 5 )。本次研究结果表明 ,日粮中添加一定剂量大豆黄酮能显著增加开产期、高峰期和后期蛋用鹌鹑的产蛋率 ,并影响其内分泌机能

Effects of Daidzein on the Performance and Serum Hormone Concentrations in the Laying Quails

Three different laying stage quails have been studied in this research.Supplementation of daidzein(Da,at the dose of 3 mg/kg) greatly increased the laying rate and serum T 3 level of 35 day old quails by 6 9%(P<0 05) and 22 8% (P<0 05),respectively.Laying qualils(7 months of age) fed diet containing 3 mg/kg of Da showed obviously higher laying rate (P<0 05) and T 3 level (P<0 05),while those treated with Da at the dose of 6 mg/kg showed a decrease of laying rate(P<0 05).Moreover,the laying rate of quails(12 months of age) fed diet containing 6 mg/kg of Da was apparently increased(P<0 01).Serum T 3,T 4 and IGF 1 elevated by 34 8%(P<0 01),27 6%(P<0 05) and 30 8%(P<0 05),respectively.These results indicate that optimum concentration of Da can significantly promote laying rate of different laying stage quails.