动物营养学报2025，Vol.37Issue(2)：1188-1199,12.DOI:10.12418/CJAN2025.103
饲料中添加群体淬灭酶对凡纳滨对虾生长性能、肌肉营养成分、血清生化指标及肠道消化酶活性的影响
Effects of Diets Supplemented with Quorum Quenching Enzyme on Growth Performance,Muscle Nutritional Composition,Serum Biochemical Indicators and Intestinal Digestive Enzyme Activities of Litopenaeus vannamei
摘要
Abstract
The purpose of this experiment was to study the effects of diets supplemented with quorum quench-ing enzyme(QQE)on the growth performance,muscle nutritional composition,serum biochemical indicators and intestinal digestive enzyme activities of Litopenaeus vannamei(L.vannamei).A total of 640 healthy L.vannamei with an initial body weight mass of(1.26±0.01)g were selected and randomly divided into four groups,with four replicates per group and 40 shrimp per replicate.The control group was fed a basal diet with-out QQE,while the experimental groups were fed diets supplemented with different levels of QQE.Specifical-ly,the diets for the experimental groups contained 1.0×104(QQE10 group),3.0×104(QQE30 group),and 6.0× 104 U/kg(QQE60 group)QQE,respectively.The experimental period was 56 days.The results showed as follows:1)the survival rate(SR)in all experimental groups was significantly higher than that in the control group(P＜0.05),while the feeding rate(FR)and feed conversion ratio(FCR)were only significantly higher in the QQE10 group compared with the control group(P＜0.05).The protein efficiency ratio(PER)in the QQE30 group was significantly higher than that in the QQE10 group(P＜0.05),with no significant differ-ences were observed among the other groups(P＞0.05).Compared with the control group,dietary supplemen-tation of QQE had no significant effect on muscle nutrient contents(P＞0.05).3)Compared with the control group,the supplementation of 3.0×104 U/kg QQE to the diet significantly reduced the contents of serum cho-lesterol(CHOL)and triglycerides(TG)(P＜0.05),and significantly increased the activity of serum alkaline phosphatase(AKP)(P＜0.05).4)Compared with the control group,dietary supplementation of QQE signifi-cantly decreased the intestinal lipase activity(P＜0.05).In summary,dietary supplementation of QQE can en-hance the SR,stimulate feeding,and regulate protein and fat metabolism of L.vannamei.Using PER as an e-valuation index,it is more appropriate to add 3.25×104 U/kg QQE in the diet of L.vannamei,while using ser-um AKP activity as an evaluation index,it is more appropriate to add 2.93×104 U/kg QQE in the diet of L.vannamei.[Chinese Journal of Animal Nutrition,2025,37(2):1188-1199]关键词
群体淬灭酶/凡纳滨对虾/生长性能/血清生化指标/消化酶活性Key words
quorum quenching enzyme/Litopenaeus vannamei/growth performance/serum biochemical indi-cators/digestive enzyme activities分类
农业科技引用本文复制引用
郝青,孙育平,邹伟华,陈晓瑛,甘炼,吴浩敏,阮灼豪,鲁慧杰,雷荣芳,黄文..饲料中添加群体淬灭酶对凡纳滨对虾生长性能、肌肉营养成分、血清生化指标及肠道消化酶活性的影响[J].动物营养学报,2025,37(2):1188-1199,12.基金项目
江门市科技计划项目(20200301032400090020) （20200301032400090020）
国家自然科学基金项目(32302977) （32302977）
2022年省级乡村振兴战略专项资金种业振兴项目(2022-SPY-00-007) （2022-SPY-00-007）
