摘要
本试验旨在研究黑水虻幼虫粉替代鱼粉对加州鲈生长性能、形体指标、体成分及营养物质沉积率的影响。选择初始体重约为4.9 g的健康加州鲈鱼苗525尾,随机分为5组,每组3个重复,每个重复35尾。5组试验鱼分别投喂以黑水虻幼虫粉替代饲料中0(G0,作为对照)、7.5%(G7.5)、15.0%(G15)、22.5%(G22.5)、30.0%(G30)鱼粉的等氮等脂饲料,试验期为62 d。结果表明:与G0组相比,G30组饲料系数显著升高(P<0.05),蛋白质效率显著降低(P<0.05)。各组间存活率、摄食量、末体重、增重率及特定生长率无显著差异(P>0.05)。与G0组相比,G7.5和G15组脏体比显著升高(P<0.05),G15、G22.5和G30组肠体比显著升高(P<0.05),G30组肝体比显著降低(P<0.05)。各组间肥满度、胃体比及腹脂率无显著差异(P>0.05)。与G0组相比,G15和G22.5组全鱼粗灰分和钙含量显著下降(P<0.05)。各组间全鱼水分、粗蛋白质、粗脂肪及总磷含量无显著差异(P>0.05)。与G0组相比,G15和G22.5组全鱼钙沉积率显著下降(P<0.05)。各组间蛋白质、脂肪、灰分及磷沉积率无显著差异(P>0.05)。综上所述,饲料中添加黑水虻幼虫粉替代30.0%的鱼粉可显著增加加州鲈的饲料系数和肠体比,显著降低蛋白质效率和肝体比。饲料中添加黑水虻幼虫粉替代15.0%和22.5%的鱼粉可显著降低加州鲈全鱼粗灰分和钙的含量,抑制体内钙的沉积。
A 62-day feeding trail was conducted to evaluate the effects of replacing fish meal with black soldier fly larvae meal on growth performance,physical indexes,body composition and nutrient retention rates of Micropterus salmoides.A total of 525 juvenile Micropterus salmoides with an initial body weight about 4.9 g were divided into 5 groups with 3 replicates in each group and 35 fish in each replicate.Five isoproteic and isolipidic diets were formulated by adding black soldier fly larvae meal to replace 0(G0,as control),7.5%(G7.5),15.0%(G15),22.5%(G22.5)and 30.0%(G30)of fish meal in diets.The results showed as follows:compared with G0 group,the feed conversion ratio was significantly increased(P<0.05)and protein efficiency ratio was significantly decreased(P<0.05)in G30 group.There were no significant differences in survival rate,feed intake,final body weight,weight gain rate and specific growth rate among groups(P>0.05).The viscerosomatic index in G7.5 and G15 groups as well as the intestinesomatic index in G15,G22.5 and G30 groups were significantly increased compared with G0 group(P<0.05),but the hepatosomatic index in G30 group was significantly decreased(P<0.05).There were no significant differences in condition factor,gastric somatic index and intraperitoneal fat ratio among group(P>0.05).Whole body ash and calcium contents in G15 and G22.5 groups were significantly decreased compared with G0 group(P<0.05),but there were no significant differences in whole body moisture,crude protein,crude lipid and total phosphorus contents among groups(P>0.05).The calcium retention rate in G15 and G22.5 groups was significantly decreased compared with G0 group(P<0.05),but there were no significant differences in protein,lipid,ash and phosphorus retention rates among groups(P>0.05).In conclusion,adding black soldier fly larvae meal in the diet to replace 30.0%fish meal can significantly increase the feed conversion ratio and intestinesomatic index,but significantly reduce the protein efficiency ratio and hepatosomatic index
作者
彭凯
萧鸿发
莫文艳
王国霞
黄燕华
PENG Kai;XIAO Hongfa;MO Wenyan;WANG Guoxia;HUANG Yanhua(Institute of Animal Science,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China;Guangdong Key Laboratory of Animal Breeding and Nutrition,Guangzhou 510640,China;Key Laboratory of Animal Nutrition and Feed Science in South China,Ministry of Agriculture in Rural Affairs,Guangzhou 510640,China;Guangzhou Fishtech Biotechnology Co.,Ltd.,Guangzhou 510640,China;Innovative Institute of Animal Healthy Breeding,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2021年第11期6340-6348,共9页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
广东省现代农业产业技术体系创新团队建设项目(2019KJ115)
科技创新战略专项(高水平农科院建设)(R2018QD-075)
广东省自然科学基金项目(2018A0303130301)。
关键词
黑水虻幼虫粉
加州鲈
生长性能
营养物质沉积
black soldier fly larvae meal
Micropterus salmoides
growth performance
nutrient retention
