复合型乳杆菌对肉鸡生产性能的影响  

Effects of compound lactobacillus on performance of broilers

作　　者：卓政 金锡九[1] ZHUO Zheng;JIN Xijiu(Agricultural College of Yanbian University,Yanji Jilin 133002,China)

机构地区：[1]延边大学农学院,吉林延吉133002

出　　处：《延边大学农学学报》2024年第2期39-44,共6页Journal of Agricultural Science Yanbian University

基　　金：东北寒区肉牛科技创新教育部工程研究中心资助(D20034)

摘　　要：为探究肉鸡日粮中添加布氏乳杆菌、干酪乳杆菌和发酵乳杆菌组成的复合微生物饲料添加剂(microbial feed additives)对肉鸡生长性能、屠宰性能、肉品质及血液指标的影响。该试验选取了200只日龄相同、健康状态良好、体重无明显差别的肉鸡雏,品种为AA鸡。分为对照组(饲喂肉鸡基础饲粮)和试验组(饲喂添加复合微生物添加剂日粮,其中添加量为6 g·kg^(-1)),试验分两组进行,每组设置5个重复,每个重复20只。结果表明:与对照组相比试验组AA鸡日增重、全净膛率、半净膛率、生长激素(growth hormone,GH)含量有极显著提高(P<0.01),屠宰率显著提高(P<0.05),同时显著降低了料重比(P<0.05),试验组血清中总蛋白(TP)、血清白蛋白(ALB)、IgA、IgG显著增加(P<0.05),试验组肉鸡蒸煮损失、滴水损失极显著低于对照组(P<0.01),肉鸡剪切力极显著低于对照组(P<0.01),其他指标无显著差异。综上所述,在AA鸡日粮中添加微生物饲料添加剂可有效提高肉鸡的生产性能和屠宰性能,同时可提高肉鸡免疫功能。To investigate the effects of adding compound microbial feed additives composed of Lactobacillus brucei,Lactobacillus casei and Lactobacillus fermenti to broiler diets on growth performance,slaughter performance,meat quality and blood indexes of broilers.Two hundred broiler chicks of the same age,good health and no significant difference in body weight were selected for the experiment.The breed was AA chickens.The ywere divided into control group(broilers were fed a basal diet)and experimental group(broilers were fed a diet supplemented with compound microbial additives,the supplemental amount was 6 g·kg^(-1)).The experiment was divided into 2 groups with 5 replicates in each group and 20 broilersin each replicate.The results showed that compared with the control group,the daily gain,evisceration rate,half-evisceration rate and growth hormone(GH)content of AA chickens in the experimental groups were significantly increased(P<0.01),and the slaughter rate was significantly increased(P<0.05),at the same time,the ratio of feed to gain was significantly decreased(P<0.05).Serum total protein(TP),serum albumin(ALB),IgA and IgG in the experimental groups were significantly increased(P<0.05),the cooking loss and drip loss of broilers in the experimental groups were significantly lower than those in the control group(P<0.01),and the shearforce of broilers in the experimental groups was significantly lower than that in the control group(P<0.01),while there were no significant differences in other indexes.In summary,adding microbial feed additives to AA chicken diet can effectively improve the production performance and slaughter performance of broilers,and improve the immune function of broilers.

关 键 词：微生物添加剂 生长性能 屠宰性能 血液指标 肉品质 

分 类 号：S831.5[农业科学—畜牧学]