金银花黄芩桑叶粗提物对产蛋后期蛋鸡生产性能、蛋品质及血清生化指标的影响

Effects of honeysuckle,skullcap and mulberry leaves crude extract on production performance,egg quality,and serum biochemical indexes of laying hens in late laying period

试验旨在探究金银花黄芩桑叶粗提物对产蛋后期蛋鸡生产性能、蛋品质、屠宰性能及肉品质的影响。选取4320只生产性能相近、健康状况良好的670日龄大午金凤蛋鸡,随机分成2组,每组6个重复,每个重复360只。对照组饲喂基础饲粮,正常饮水,试验组在饮水中添加0.3%的金银花黄芩桑叶粗提物。试验期30 d。结果表明,与对照组相比,试验组正常蛋数量、产蛋总数、正常蛋总重量、正常蛋均重、产蛋率、小黄色卵泡数量显著升高(P<0.05);异常蛋比例、平均斑点蛋数、平均钙盐沉积蛋数、平均波纹蛋数、斑点蛋比、钙盐沉积蛋比显著降低(P<0.05)。与对照组相比,试验组胸肌pH值、腿肌pH值、腿肌系水力、腿肌红度(a*)值和黄度(b*)值均显著升高(P<0.05);试验组胸肌亮度(L*)值和腿肌L*值均显著降低(P<0.05)。研究表明,产蛋后期蛋鸡饮水中添加金银花黄芩桑叶粗提物可有效提高产蛋性能,改善肉品质和血清生化指标。

The experiment aimed to explore the effects of honeysuckle,skullcap and mulberry leaves crude extract on the production performance,egg quality,slaughter performance,and meat quality of laying hens in the late laying period.A total of 4320 six hundred and seventy-day-old Dawu Golden Phoenix laying hens with similar production performance and good health were selected and randomly divided into two groups,with six replicates in each group and 360 hens in each replicate.The control group was fed basic diet and normal drinking water.The experimental group added 0.3%honeysuckle,skullcap and mulberry leaves crude extract to drinking water.The test period was 30 days.The results showed that compared to the control group,the experimental group had a significant increase in the number of normal eggs,total egg production,total weight of normal eggs,average weight of normal eggs,egg production rate,and the number of small yellow follicles(P<0.05),the proportion of abnormal eggs,average number of spotted eggs,average number of eggs with calcium salt deposits,average number of wrinkled eggs,the ratio of spotted eggs,and the ratio of eggs with calcium salt deposits were significantly reduced(P<0.05).Compared to the control group,the pH value of the pectoral muscle,the pH value of the leg muscle,the water-holding capacity of the leg muscle,and the a*and b*values of the leg muscle in the experimental group were all significantly increased(P<0.05),the L*values of both the pectoral and leg muscles in the experimental group were significantly decreased(P<0.05).The study indicates that adding honeysuckle,skullcap and mulberry crude extract to the drinking water of laying hens in the late laying period can effectively increase the egg production performance,improve meat quality and serum biochemical indices.