紫月优生素替代猪饲粮中抗菌药物的效果试验研究

Study on Effect of Antimicrobial Drugs in Pig Diets Replacement Ziyue Growth Optimizing Agent

试验选取体重10kg左右的仔猪80头随机分为两个试验组，进行为期110天的饲养试验，于试验期末采集试猪血液进行生化指标和免疫指标测定。试验结果表明，优生素组仔猪平均日增重比抗茵药物组提高8．81％，料肉比下降10．69％；优生素组活体背膘厚比抗菌药物组降低6．75％，胴体重比抗菌药物组提高11．71％，屠宰率提高4．17％，胴体瘦肉率提高6．48％，肌肉系水率提高9．49％，眼肌面积提高6．57％；优生素组猪血清生长激素（GH）比抗茵药物组提高23．91％，三碘甲腺原氨酸（T1）含量提高26．47％，四碘甲腺原氨酸（T4）含量提高14．34％，胰岛素（INS）含量提高25．23％，紫月优生素组尿素氮（BUN）含量比抗茵药物组降低10．75％；优生素组猪血清IgG含量比抗茵药物组提高6．17％，血清IgA含量提高14．20％，白细胞介素-2（IL-2）含量提高14．29％。可见日粮中添加紫月优生素可有效提高猪只的生长性能和免疫功能，且效果优于抗菌药物组。

Eighty piglets were selected and randomly divided into two groups, the experiment lasted for 110 days. The results showed that： the average daily gain of the experiment group adding Ziyue Growth Optimizing Agent（ZGOA） increased by 8.81% and the feed/gain decreased by 10.69% than the control group. Compared with the control,the carcass weight ,dressing per- centage ,carcass lean meat ,holding water rate and eye muscle area of experiment group increased by 11.71%, 4.17%, 6.48%, 9.49% and 6.57%, and live backfat thickness decreased by 6.75% ;the content of GH, T3, T4, INS in blood serum of experiment group increased by 23.91% ,26.47%, 14.34% and 25.23% respectively, and the content of BUN decreased by 10.75%. Compared with the control group, the content of IgG,IgA and IL -2 in blood serum of experiment group increased by 6.17%, 14.20% and 14.29% respectively. All the results showed that, ZGOA could improve the performance and immunity of pigs.