代谢有机酸对断奶仔猪血清免疫指标及甲状腺激素的影响  

Effect of metabolic organic acid on serum immune index and thyroid hormone of weaned piglets

作　　者：徐长跃[1] 李杰[1] 于艳[1] 李园园 陈雷[1] 李马成 赵雪梅[1] 

机构地区：[1]东北农业大学动物科学技术学院,黑龙江哈尔滨150030 [2]北京市大兴区畜牧技术推广站,北京102601

出　　处：《饲料工业》2016年第12期6-9,共4页Feed Industry

摘　　要：试验旨在研究不同水平代谢有机酸对断奶仔猪血清免疫指标、游离三碘甲腺原氨酸和游离四碘甲腺原氨酸的影响。试验选用180头体重相近的(长×大)二元健康杂交猪,随机分为3组,每组3个重复,每个重复20头猪,每个重复公、母猪比例一致。对照组饲喂基础日粮,试验组分别饲喂添加0.3%和0.4%代谢有机酸产品的日粮,试验期50 d。结果表明:1与对照组相比,各试验组血清中球蛋白、高密度脂蛋白和甘油三酯含量均升高,尿素氮含量均降低,其中0.4%代谢有机酸组低密度脂蛋白和总胆固醇含量显著高于对照组(P<0.05);2各试验组较对照组提高了血清中免疫球蛋白的含量(P>0.05);30.4%代谢有机酸组较对照组提高了血清中游离三碘甲腺原氨酸和游离四碘甲腺原氨酸的含量(P>0.05);4代谢有机酸对断奶仔猪生长性能无显著影响。综上所述,代谢有机酸能够提高断奶仔猪免疫力,促进其甲状腺激素分泌,且以添加0.4%代谢有机酸组效果较好。The trial was conducted to study the effects of metabolic organic acid powder on immune index and thyroid hormone of weaned piglets. A total of 180 crossbred （LandraceXYorkshire） pigs with similar body and health condition were randomly assigned to 4 groups with 3 replicates per of 20 each with male and female evenly divided. The control group was fed with a basal diet, the experimental groups were fed with the basal diet supplemented with 0.3% and 0.4% metabolic organic acid. The experiment lasted for 50 days. The results showed as follows： ①compared with the control group, the serum globulin, high density lipoprotein and triglyceride were increased in experimental group, the blood urea nitrogen was decreased in experimental group, and low density lipoprotein and total cholesterol of 0.4% group were significantly improved （P〈0.05）. ②The level of serum immunoglobulin was improved in experimental group （P〉0.05）. ③Compared with the control group, the serum FT3 and FT4 were increased in 0.4% group（P〉0.05）. ④ The results showed that metabolic organic acid had no significant effects on growth performance of weaned piglets. In conclusion, metabolic organic acid could improve immunity, promote thyroid hormone secretion of weaned piglets, and the optimal level is 0.4%.

关 键 词：代谢有机酸 断奶仔猪 免疫指标 甲状腺激素 

分 类 号：S816.7[农业科学—饲料科学]