肠道营养保健剂对弱僵猪生长性能、免疫机能及消化酶活性的影响  

Effects of intestinal nutrition and health additives on growth performance,serum biochemical index and digestive enzyme activity in weakly stiff pigs

作　　者：路兵龙 王焕杰 张清海 陈金勇 张雪洁 陈文[1] LU Bing-long;WANG Huan-jie;ZHANG Qing-hai;CHEN Jin-yong;ZHANG Xue-jie;CHEN Wen(Feed Engineering Henan Province Engineering Laboratory,Henan Agricultural University , Zhengzhou 450000, China;Henan Nannier Biotechnology Company Zhengzhou 4500OO,China;Young Eagle Farming Group Research Institute,Xinzheng,Henan 4511Q0,China)

机构地区：[1]河南农业大学饲料营养河南省工程实验室,河南郑州450000 [2]河南普尼尔生物科技公司,河南郑州450000 [3]雏鹰农牧集团研究院,河南新郑451100

出　　处：《中国兽医学报》2019年第10期2082-2087,2095,共7页Chinese Journal of Veterinary Science

基　　金：国家家养动物种质资源平台资助项目

摘　　要：试验旨在研究肠道营养保健剂通过改善弱僵猪肠道功能,提高弱僵猪的生产性能的作用机制。选取30日龄杜长大三元杂交断奶弱僵猪80头,随机分为2个组(每组4个重复,每个重复10头猪),对照组饲喂清水与基础饲粮按照2∶1比例配制成的粥拌料;试验组饲喂肠道营养保健剂水溶液(1 kg/100 kg水)与基础饲粮按照2∶1比例配制成的粥拌料。试验期为21 d,并于试验第15天屠宰取样。结果表明:在试验1~7 d,肠道营养保健剂显著提高了弱僵猪的平均日增体质量(P<0.05),降低料重比;在8~21 d,显著降低了腹泻率和死亡率(P<0.05);肠道营养保健剂能显著降低白球比和尿素氮(P<0.05)含量,提高血清球蛋白IgA、IgM、IgG质量浓度(P>0.05)及肝脏和脾脏指数(P<0.05);肠道营养保健剂能降低弱僵猪胃pH值,提高胃蛋白酶的活性(P>0.05)。由此可见,肠道营养保健剂能提高弱僵猪的采食量、胃蛋白酶和糜蛋白酶活性、增强免疫机能、减少腹泻率和死淘率,从而提高了弱僵猪的生长性能。To investigate the effects of intestinal nutrition and health additives on improving growth performance and intestinal function of weakly stiff pig,a total of 80 weaned pigs(Landrace×Large White×Duroc) with aged 30 days,were randomly divided into 4 groups(4 replicates of 10 pigs each).The control group was fed on with clear water and basal diet for the prepared porridge mix according to 2∶1;the experimental group was fed gastrointestinal nutrient solution(1 kg/100 kg water) and basal diet,according to 2∶1 prepared porridge.The test period was 21 days and the pigs were slaughtered on the 15 th day of the test,samples were collected.The results showed that at 1 to 7 days,the addition of intestinal nutrition and health additives could significantly increased the average daily gain of weakly stiff pigs(P<0.05),decreased the feed-to-weight ratio;at 8 to 21 days,diarrhea and death rates were significantly reduced(P<0.05);the addition of intestinal nutrition and health additives could significantly reduced the albumin to globulin ratio and content of urea nitrogen(P<0.05),increased quality concentration of serum globulin IgA,IgM,IgG(P>0.05),and liver and spleen index(P<0.05);the addition of intestinal nutrition and health additives could reduced gastric pH and increased pepsin activity of weakly stiff pigs(P>0.05).Thus,the addition of intestinal nutrition and health additives can increase feed intake of weakly stiffpigs,pepsin and chymotrypsin activity,enhance immune function,reduce the rate of diarrhoea and mortality,thereby improve the growth performance of weakly stiff pigs.

关 键 词：弱僵猪 肠道保健剂 免疫指标 器官指数 消化酶 

分 类 号：S816.4[农业科学—饲料科学]