乳酸链球菌素后生元对育成期水貂生长性能、营养物质表观消化率、免疫功能及抗氧化能力的影响  

Effects of Nisin Postbiotics on Growth Performance,Nutrient Apparent Digestibilities,Immune Function and Antioxidant Capacity of Minks during Growing Period

作　　者：巩宇 王小龙 韩兴状 张贝贝 孙虎芝 任慧英 李文立[1] GONG Yu;WANG Xiaolong;HAN Xingzhuang;ZHANG Beibei;SUN Huzhi;REN Huiying;LI Wenli(College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109,China;Qingdao Noanbite Biotechnology Co.,Ltd.,Qingdao 266109,China)

机构地区：[1]青岛农业大学动物科技学院,青岛266109 [2]青岛诺安百特生物技术有限公司,青岛266109

出　　处：《动物营养学报》2024年第11期7275-7283,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：山东省特种经济动物产业技术体系营养与饲料岗位(SDAIT-21-04)。

摘　　要：本研究旨在探讨饲粮中添加乳酸链球菌素后生元对育成期水貂生长性能、营养物质表观消化率、免疫功能及抗氧化能力的影响。选取80日龄左右体重相近的育成期雄性水貂96只,随机分为6组,每组8个重复,每个重复2只。各组分别在基础饲粮中添加0(对照)、0.5、1.0、1.5、2.0和2.5 g/kg的乳酸链球菌素后生元。预试期1周,正试期8周,1~4周为试验Ⅰ期,5~8周为试验Ⅱ期。结果表明:1)试验全期,1.0 g/kg水平组的平均干物质日采食量(ADDMI)显著高于对照组和1.5、2.0、2.5 g/kg水平组(P<0.05),1.0 g/kg水平组的平均日增重(ADG)显著高于对照组和2.5 g/kg水平组(P<0.05)。2)试验Ⅰ期,1.0 g/kg水平组的粗脂肪表观消化率显著高于对照组和2.5 g/kg水平组(P<0.05),1.0 g/kg水平组的粗灰分和钙表观消化率显著高于对照组和0.5、2.5 g/kg水平组(P<0.05)。试验Ⅱ期,1.5 g/kg水平组的粗脂肪表观消化率显著高于对照组和2.5 g/kg水平组(P<0.05)。3)1.0 g/kg水平组的血清免疫球蛋白M含量显著高于对照组和0.5 g/kg水平组(P<0.05)。4)1.0 g/kg水平组的血清谷胱甘肽过氧化物酶活性显著高于对照组和0.5、2.0、2.5 g/kg水平组(P<0.05)。综上所述,饲粮中添加1.0 g/kg的乳酸链球菌素后生元可改善水貂的生长性能,提高饲粮中营养物质表观消化率,提高血清免疫球蛋白M含量和谷胱甘肽过氧化物酶活性。The aim of this study was to investigate the effects of dietary nisin postbiotics on growth performance,nutrient apparent digestibilities,immune function and antioxidant capacity of minks during growing period.Ninety-six white male minks during growing period around 80 days of age with similar body weight were randomly divided into 6 groups with 8 replicates in each group and 2 minks in each replicate.Minks in 6 groups were fed basal diets supplemented with 0(control group),0.5,1.0,1.5,2.0 and 2.5 g/kg nisin postbiotics,respectively.The pre-experimental period lasted for 1 week,and the experimental period lasted for 8 weeks,the 1 to 4 weeks were experimental period Ⅰ and the 5 to 8 weeks were experimental period Ⅱ.The results showed as follows:1)during the whole experimental period,the average daily dry matter intake of 1.0 g/kg level group was significantly higher than that of control group and 1.5,2.0,2.5 g/kg level groups(P<0.05),and the average daily gain of 1.0 g/kg level group was significantly higher than that of control group and 2.5 g/kg level group(P<0.05).2)During the experimental periodⅠ,the ether extract apparent digestibility of 1.0 g/kg level group was significantly higher than that of control group and 2.5 g/kg level group(P<0.05),the crude ash and calcium apparent digestibilities of 1.0 g/kg level group were significantly higher than those of control group and 0.5,2.5 g/kg level groups(P<0.05).During the experimental period Ⅱ,the ether extract apparent digestibility of 1.5 g/kg level group was significantly higher than that of control group and 2.5 g/kg level group(P<0.05).3)The serum immunoglobulin M content of 1.0 g/kg level group was significantly higher than that of control group and 0.5 g/kg level group(P<0.05).4)The serum glutathione peroxidase activity of 1.0 g/kg level group was significantly higher than that of control group and 0.5,2.0,2.5 g/kg level groups(P<0.05).In conclusion,the addition of 1.0 g/kg nisin postbiotics in the diet can improve the growth performance of minks,in

关 键 词：乳酸链球菌素 后生元 水貂 生长性能 营养物质表观消化率 免疫 抗氧化 

分 类 号：S852.2[农业科学—基础兽医学]