改性凹凸棒石对饲喂霉变玉米日粮肉鸡生产性能、血清生化指标及抗氧化能力的影响  

Effects of modified palygorskite supplementation to the feed of mold-contaminated corn on the growth performance,serum biochemistry and antioxidant capacities in broilers

作　　者：许巧 程业飞 苏越[1] 陈跃平[1] 温超[1] 周岩民[1] XU Qiao;CHENG Yefei;SU Yue;CHEN Yueping;WEN Chao;ZHOU Yanmin(College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China)

机构地区：[1]南京农业大学动物科技学院

出　　处：《畜牧与兽医》2018年第5期21-27,共7页Animal Husbandry & Veterinary Medicine

基　　金：江苏省科技成果转化专项资金项目(BA2016134)

摘　　要：旨在研究霉变玉米日粮中添加改性凹凸棒石对肉鸡生产性能、血清生化指标及抗氧化能力的影响。将192只体重相近的1日龄爱拔益加（AA）肉鸡随机分为3组,每组8个重复,每个重复8只,分别饲喂基础日粮（对照组）、霉变玉米日粮（负对照组）和霉变玉米日粮添加0.1%改性凹凸棒石的试验日粮（试验组）,试验为期42 d。结果：与对照组相比,饲喂霉变玉米日粮显著提高了肉鸡第1-42天料重比、第42天血清丙氨酸氨基转移酶（ALT）活性以及血清和肝脏中丙二醛含量（P〈0.05）,降低了第42天肝脏中谷胱甘肽含量（P〈0.05）。添加改性凹凸棒石后,上述指标均恢复至与对照组无显著差异（P〉0.05）。与负对照组相比,添加改性凹凸棒石可显著降低肉鸡第21天血清ALT活性和第42天血清天门冬氨酸氨基转移酶活性（P〈0.05）,提高第21天肝脏谷胱甘肽过氧化物酶活性（P〈0.05）,且试验组第21天血清ALT活性显著低于对照组（P〈0.05）。结果提示,日粮中添加0.1%的改性凹凸棒石能有效缓解霉变玉米日粮对肉鸡生产性能、血清生化指标及抗氧化能力的不利影响。This study investigated the effects of modified palygorskite （MPal） on the growth performance, serum biochemistry and antioxi- dant capacities in broilers fed with mold-contaminated corn. A total of 192 broilers were allocated to three treatments with 8 replicates of 8 birds. Broilers in the three groups were fed with a basal diet （the control group）, a diet with mold-contaminated corn （the negative control group）, and the contaminated diet supplemented with 0. 1% MPal （the test group）, respectively. The test lasted for 42 day. The results were： Compared with the control group, the mold-contaminated corn significantly increased the feed/gain ratio during whole test （P〈 0. 05）, the alanine aminotransferase （ALT） activity in the serum and the malondialdehyde accumulation in both the serum and liver at day 42 （P〈0. 05）, but reduced the glutathione content in the liver （P〈0. 05）. The values of these parameters were reversed with the supplemen- tation of MPal to normal levels comparable with those in the control group （P〉0.05）. Additionally, MPal inclusion decreased ALT activity in serum at day 21 and the aspartate aminotransferase content at day 42 （P〈0. 05）, but elevated the glutathione peroxidase activity in the liver at day 42 （P〈0.05） as compared with those of the broilers given the contaminated corn, with the value of ALT activity being lower than that in the control group （P〈0. 05）. The above results suggested that dietary MPal supplementation could exert protective effect on broilers fed with mold-contaminated corn.

关 键 词：霉变玉米 改性凹凸棒石 肉鸡 

分 类 号：S816.7[农业科学—饲料科学]