日粮中添加过氧化氢酶对断奶仔猪生长性能、肠道形态及抗氧化性能的影响

发布时间：2018-11-27 12:34

【摘要】：为研究过氧化氢酶(CAT)对断奶仔猪生长性能、肠道形态以及抗氧化性能的影响,试验选择21日龄健康、体重接近的三元杂交断奶仔猪240头,随机分为5组,每组设4个重复,每个重复12头猪。A组为对照组,B组为氧化锌(Zn O)组,添加量为2500 mg/kg,C、D、E组在基础日粮中分别添加1000、1500、2000 mg/kg CAT。结果表明:(1)与对照组相比,D、E组料肉比分别降低3.2%、7.2%(P0.05),同时日增重和日采食量提高,腹泻率降低,但无显著影响(P0.05);(2)与对照组相比,D、E组血清中丙二醛(MDA)分别降低43.7%和44.7%(P0.05),CAT组谷胱甘肽(GSH)含量显著升高(P0.05);(3)与对照组相比,CAT组十二指肠、空肠、回肠绒毛高度有不同程度增加,隐窝深度有不同程度降低,但均未达到显著效果(P0.05);(4)与对照组相比,C、D、E组粗脂肪表观消化率分别升高32.62%、33.49%、29.69%(P0.05),干物质和粗蛋白质也有提高,但差异不显著(P0.05)。饲粮中添加1500 mg/kg CAT可以提高断奶仔猪抗氧化性能,改善肠道绒毛形态,从而提高营养物质的消化率,达到提升生长性能的效果,并且可以在一定程度上达到ZnO的效果。
[Abstract]:In order to study the effects of catalase (CAT) on growth performance, intestinal morphology and antioxidant activity of weaned piglets, 240 weaned piglets were randomly divided into 5 groups with 4 replicates in each group. Each repeated 12 pigs. Group A as control group, group B as zinc oxide (Zn O) group, adding 2500 mg/kg,C,D,E to the basic diet, respectively. The results showed that: (1) compared with the control group, the feed / meat ratio of group D was decreased by 3.2% (P0.05), while the daily gain and daily intake were increased, the diarrhea rate was decreased, but there was no significant effect (P0.05). (2) compared with the control group, the malondialdehyde (MDA) (MDA) in serum decreased by 43.7% and 44.7% respectively (P0.05 in), CAT group). (3) compared with the control group, the height of duodenum, jejunum and ileum villi in CAT group increased to some extent, and the depth of crypt decreased to different degree, but none of them had significant effect (P0.05). (4) compared with the control group, the apparent digestibility of crude fat increased 32.62% (P0.05), dry matter and crude protein increased by 33.4929.69% (P0.05), but the difference was not significant (P0.05). Dietary supplementation of 1500 mg/kg CAT could improve antioxidant performance, intestinal villus morphology, nutrient digestibility and growth performance of weaned piglets, and to a certain extent, it could achieve the effect of ZnO.
【作者单位】：华南农业大学动物科学学院;广东温氏食品集团股份有限公司;辽宁威兰生物技术有限责任公司;
【基金】：广东省科技计划项目(2016A020210104) 广州市花都区产学研结合项目(天然植物肉质风味改进剂创制与应用技术)
【分类号】：S828.5

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