复合有机酸对仔猪生长性能、血液指标和饲料表观消化率的影响  

Effects of compound organic acid on growth performance,blood indices and feed apparent digestibility of piglets

作　　者：于海霞 李宁[2] 李泽青 苏绍升 陈荣荣 张建华 郑梓[2] 刘正群 王鸿英 闫峻[2] YU Haixia;LI Ning;LI Zeqing;SU Shaosheng;CHEN Rongrong;ZHANG Jianhua;ZHENG Zi;LIU Zhengqun;WANG Hongying;YAN Jun(Tianjin Agricultural Development Service Center,Tianjin 300061,China;Institute of Animal Husbandry and Veterinary Medicine,Tianjin Academy of Agricultural Sciences,Tianjin 300380,China;Tianjin Taikang Biotechnology Co.,Ltd.,Tianjin 301508,China;Tianjin Jinghai District Agricultural Development Service Center,Tianjin 301600,China)

机构地区：[1]天津市农业发展服务中心,天津300061 [2]天津市农业科学院畜牧兽医研究所,天津300380 [3]天津市泰康生物科技有限公司,天津301508 [4]天津市静海区农业发展服务中心,天津301600

出　　处：《黑龙江畜牧兽医》2022年第15期104-108,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：天津市生猪产业技术体系创新团队精细化养殖岗位项目(ITTPRS2021008)。

摘　　要：为了探索复合有机酸对仔猪生长性能、血液指标和饲料表观消化率的影响,试验选择体重大小相近[(12.0±1.0)kg]的健康“杜×长×大”三元杂交阉公猪96头,随机分为2组,每组6个重复,每个重复8头。对照组饲喂基础日粮,试验组在基础日粮中添加0.1%(1000 g/t)复合有机酸,预试期5 d,试验期42 d。试验结束后,对生长性能指标(终末重、平均日增重、平均日采食量)、血液指标[乳酸脱氢酶(LDH)、谷胱甘肽过氧化物酶(GSH-Px)、总抗氧化能力(T-AOC)、二胺氧化酶(DAO)、D-乳酸(D-Lac)、白细胞介素-4(IL-4)、免疫球蛋白G(IgG)等]、饲料表观消化率进行分析。结果表明:试验组的终末重、平均日增重、平均日采食量均显著高于对照组(P<0.05),料重比高于对照组,但差异不显著(P>0.05)。试验组的GSH-Px活性、T-AOC、IL-4含量,以及干物质、粗蛋白、粗脂肪和粗纤维的表观消化率均显著高于对照组(P<0.05);试验组的LDH、DAO活性,D-Lac含量均显著低于对照组(P<0.05)。说明在仔猪日粮中添加0.1%复合有机酸,能够提高仔猪的生长性能和饲料表观消化率,增强机体抗氧化能力和仔猪免疫能力。In order to investigate the effects of compound organic acid on growth performance,blood indices and feed apparent digestibility of piglets,ninety-six healthy“Duroc×Landrace×Yorkshire”crossbred barrows with similar body weight(12.0±1.0)kg were selected and randomly divided into 2 groups with 6 replicates per group and 8 pigs per replicate.The pigs in the control group were fed a basal diet,and the pigs in the experimental group were fed the basal diet supplemented with 0.1%(1000 g/t)compound organic acid.The prefeeding period was 5 days and the experiment lasted for 42 days.After the test,the growth performance indicators(the final weight,average daily weight,average feeding capacity),the blood indexes(lactate dehydrogenase[LDH],glutathione peroxidase[GSH-Px],total antioxidant capacity[T-AOC],diamine oxidase[DAO],D-lactic acid[D-Lac],interleukin-4[IL-4],immunoglobulin G[IgG],etc.)and apparent digestibility of feed were analyzed.The results showed that the final weight,average daily gain,average daily feed intake in the experimental group were significantly higher than those in the control group(P<0.05),The ratio of feed to gain was higher than that of control group,but the difference was not significant(P>0.05).The GSH-Px activity,T-AOC,IL-4,and the apparent digestibility of dry matter,crude protein,crude fat and crude fiber in the experimental group were significantly higher than those in the control group(P<0.05).The activities of lactate dehydrogenase(LDH)and diamine oxidase(DAO)and the content of D-lactic acid in the experimental group were significantly lower than that in the control group(P<0.05).The results indicated that adding 0.1%compound organic acid in the feed of piglets could improve the growth performance and feed apparent digestibility,enhance the antioxidant capacity of the body,and improve the immune ability of piglets.

关 键 词：有机酸 仔猪 生长性能 血液指标 消化率 

分 类 号：S816.7[农业科学—饲料科学]