饲粮蛋白质及赖氨酸含量对育肥猪生产性能与血清生化指标的影响

发布时间：2018-04-22 10:23

本文选题：育肥猪 + 蛋白质　；参考：《饲料工业》2017年22期

【摘要】：选取90头体重约62 kg的杜×长×大三元杂交育肥猪,将其分为第1组(对照组)、第2组和第3组,每组30头猪。用猪场现行饲粮(对照饲粮)饲喂对照组猪;第2组和第3组分别饲喂不同蛋白质和赖氨酸含量的日粮。饲养试验结果表明:(1)与对照组相比,第2、3组猪平均日增重分别提高37.09%(P0.01)、39.45%(P0.01),饲料的转化率分别提高20.21%(P0.01)、18.91%(P0.01),每千克增重的饲料成本(7.51、8.01元/kg)较对照组(7.36元/kg)分别提高2.04%和8.83%。(2)第2、3组猪血清葡萄糖含量较对照组分别提高14.66%(P0.05)、17.80%(P0.05),血清总蛋白含量分别提高7.94%(P0.05)、9.74%(P0.05),血清甘油三酯含量显著提高(P0.05),血清总胆固醇含量显著降低(P0.05);第2组猪血清GPT活性显著地低于对照组(P0.05),第3组猪血清GPT活性极显著地低于对照组(P0.01);第3组猪血清GOT活性显著地低于对照组和第2组(P0.05),血清T-SOD活性极显著地高于对照组(P0.01),显著地高于第2组(P0.05);第2、3组猪血清MDA含量较对照组分别减少21.27%(P0.05)、22.17%(P0.05)。基于试验结果可推断:育肥猪饲粮中蛋白质的适宜含量为15.25%,赖氨酸适宜含量为0.90%。
[Abstract]:Ninety 脳 62 kg DU 脳 Chang 脳 Da crossbred fattening pigs were selected and divided into the first group (control group, group 2 and group 3, 30 pigs per group). The current diet of pig farm (control diet) was used to feed the control group, the second group and the third group were fed the diets with different protein and lysine content respectively. The results of the feeding experiment showed that the control group was compared with the control group. The average daily gain (ADG) of group 2 and group 2 were increased by 37.09% and 39.45%, respectively, and the feed conversion rate was increased by 20.21% and 18.91% / kg, respectively, and the feed cost per kilogram increased by 7.51 yuan / kg and 7.36 yuan / kg, respectively, and the serum glucose content of group 2 was increased by 2.04% and 8.83% / kg respectively compared with the control group. The content of serum total protein and triglyceride were 7.94 and 7.94, respectively, respectively. Serum triglyceride increased significantly (P 0.05), serum total cholesterol decreased significantly (P 0.05), the activity of serum GPT in group 2 was significantly lower than that in control group (P 0.05), and the activity of serum GPT in group 3 was extremely significant. The serum GOT activity of the third group was significantly lower than that of the control group and the second group, the activity of serum T-SOD was significantly higher than that of the control group P0.01, and significantly higher than that of the second group, and the content of serum MDA in the 2nd group was lower than that in the control group, respectively. Based on the results of the experiment, it can be inferred that the suitable content of protein and lysine is 15.25 and 0.90, respectively.
【作者单位】：安徽农业大学动物科技学院;
【分类号】：S828.5

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