摘要
为了探讨抗菌肽对断奶仔猪生产性能和健康水平的影响,选取144头(25±3)日龄、体质量相近[(6.91±1.10)kg]的杜×长×大三元杂交断奶仔猪,随机分成3组,即基础日粮组(对照组)、基础日粮+0.2%抗菌肽组(试验1组)和基础日粮+0.4%抗菌肽组(试验2组),试验周期28d,测定其生产性能和血清相关指标的变化。结果显示,与对照组相比,试验前期(1~14d)试验2组仔猪平均日增体质量、平均日采食量和料重比分别提高11.3%、3.8%和6.4%,但组间差异不显著。试验1组和试验2组死淘率显著降低,试验2组的血清IgG和血清总胆固醇显著高于对照组、尿素氮显著低于其他组。另外,试验1组和试验2组血清丙二醛含量显著低于对照组,试验2组的抗氧化能力显著高于对照组和试验1组。表明抗菌肽能显著改善断奶仔猪的生产性能,提高血清IgG水平、抗氧化性能和健康水平,降低死淘率。
In order to study the effect of antimicrobial peptide on growth performance and health of weaning piglets,144 weaning piglets[(25 ± 3) d of age, Landrace × Yorkshire × Duroc, initial body weight: (6.91±1.10)kg] were randomly allotted to 3 treatments. There were 3 replicate pens in each treatment with 16 pigs per pen. The dietary treatments were basal diet (control), basal diet + 0. 2% antimierobial peptide (group 1) and basal diet + 0. 4 % antimicrobial peptide (group 2). The experimental diets were fed in for 2 phases(I-14 d,prior phase and 15--28 d,la- ter phase post-weaning). The growth performance and serum related indices of 3 treatments were measured. The results showed that ADG,ADFI and F/G of the piglets in group 2 were increased by 11.3% ,3.8% and 6.4% ,but difference between the group 2 and control was not significant. The death and culling rates of the piglets in group 1 and group 2 were significantly lower than that of control,the serum IgG and TC content of group 2 were significantly higher,and the serum BUN level was significantly lower than that of group 1 and control. In addition,the serum MDA content in group 1 and 2 was significantly lower than that of control, and the serum T-AOC activi- ty in group 2 was significantly higher than that of goups 1 and control. It can be inferred that the serum IgG level,antioxidant capacity and health of the weaning piglets could be significantly im- proved with antimicrobial peptide supplementation in the diets,and the death and culling rate re- duced as well.
出处
《河南农业科学》
CSCD
北大核心
2013年第9期112-115,127,共5页
Journal of Henan Agricultural Sciences
基金
国家自然科学基金项目(30972287)
关键词
抗菌肽
断奶仔猪
生产性能
健康水平
antimicrobial peptide
weaning pig
growth performance
health