牛磺酸对鹌鹑产蛋性能、脂肪代谢及免疫功能的影响

Effects of Taurine on Egg Production,Immune Responses and Fat Metabolism in Laying Quails

摘要:

以鹌鹑为研究对象,在日粮中添加不同剂量的牛磺酸(Tau),考察Tau对鹌鹑产蛋性能、脂肪代谢及免疫功能的影响。将108只鹌鹑分为3个处理组,每个处理组4个重复,每个重复9只,进行试验4周。结果表明,添加质量分数为0.01%Tau显著降低破蛋率,添加质量分数为0.05%Tau显著提高产蛋率,显著降低料蛋比和破蛋率(P<0.05);0.05%Tau组显著提高免疫球蛋白(IgG)含量和增强皮肤超敏反应(FWI)(P<0.05);质量分数0.01%Tau显著降低动脉硬化指数(AI)和甘油三酯(TG)含量;质量分数0.05%Tau组可显著提高血清高密度脂蛋白(HDL-C)含量和脂蛋白酯酶(LPL)活性,显著降低TG含量和AI指数(P<0.05)。结果提示,日粮中添加牛磺酸可提高鹌鹑的产蛋率和有效降低软破蛋率,牛磺酸提高了鹌鹑的免疫功能,通过提高血清LPL活性和HDL-C水平促进了脂肪代谢。

Abstract:

With the quails as research model,different levels of taurine (0,0.01% and 0.05%) were added to the diets to carefully investigate the effects of taurine on production,immune responses and fat metabolism of laying quails.A total of 108 quails were allocated to 3 dietary treatments.Each treatment comprised 4 replicates of 9 quails.The experimental period lasted 4 weeks.The results showed that 0.01% taurine decreased broken and soft eggs ratio significantly (P<0.05),0.05% taurine increased laying rate,decreased feed convesion rate and broken and soft eggs ratio significantly compared with the control (P < 0.05).Compared with that of the control,0.01% taurine decreased triglyceride and atherogenic index significantly (P < 0.05);0.05% taurine significantly increased serum HDL-C and LPL lipoprotein lipase and significantly decreased triglyceride and atherogenic index (P < 0.05).Results of this study indicated that taurine can increase laying rate and decrease broken and soft eggs ratio in laying quails,taurine can enhance immune function,and taurine can promote fat metabolism through increasing serum HDL-C level and LPL lipoprotein lipase activity in laying quails.