中国水产科学2026，Vol.33Issue(4)：47-61,15.DOI:10.12264/JFSC2025-0305
棉粕和大豆浓缩蛋白作为大黄鱼饲料蛋白源的比较研究
A comparison of cottonseed meal and soy protein concentrate as protein sources in large yellow croaker(Larimichthys crocea)diet
摘要
Abstract
This research compared the effects of using cottonseed meal and soy protein concentrate(SPC)as protein sources in low-fishmeal diets on growth,feed utilization efficiency,and antioxidant capacity of large yellow croaker(Larimichthys crocea),to determine suitable cottonseed meal inclusion level in the diet formula.A single-factor experiment with six treatments was designed.Basal diet(BD)contained 40%fishmeal;a low-fishmeal diet(CM0)was formulated by replacing 40%of the fishmeal in BD with SPC.The other four diets,abbreviated as CM1,CM2,CM3 and CM4,were formulated by replacing 25%,50%,75%,and 100%of the SPC in CM0 with cottonseed meal,respectively.Fish weighing(17.1±0.3)g were fed in net-pens for 10 weeks.The results showed that replacing SPC with cottonseed meal significantly affected final body weight(FBW),feed conversion ratio(FCR),nitrogen retention efficiency(NRE),glutathione peroxidase activity(GSH-Px)in the liver and plasma and malondialdehyde(MDA)content in plasma(P<0.05).Compared with CM0,CM1,CM2 and CM3 did not exhibit significant changes in FBW,weight gain(WG),FCR,feed intake,NRE,phosphorus retention efficiency,energy retention efficiency(ERE),as well as activities of superoxide dismutase,GSH-Px and catalase and contents of MDA and protein carbonyl(PC)in plasma and liver(P>0.05).CM4 exhibited reduced FBW,NRE and GSH-Px activity in plasma and liver(P<0.05)and elevated FCR and plasma MDA content(P<0.05).The WG of CM1,CM2,CM3 and CM4 decreased by 1.2%,2.4%,6.3%,and 16.7%relative to CM0,respectively.Compared with BD,CM0,CM1,CM2 and CM3 did not exhibit significant changes in FBW,WG,feed intake,FCR,NRE and ERE(P>0.05),whereas CM4 exhibited reduced FBW,WG,NRE and ERE(P<0.05)and elevated FCR and contents of MDA and PC in plasma(P<0.05).The feed cost was lower in CM0,CM1,CM2 and CM3 than in BD(P<0.05).The results of this study reveal that dietary fishmeal content for large yellow croaker could be reduced to 24%by using SPC alone as an alternative ingredient.Adding cottonseed meal at 4%–9%to replace 25%–75%of the SPC in CM0 did not significantly negatively affect growth and health of the fish.However,adding 17%cottonseed meal to replace SPC completely in CM0 resulted in declined growth.Therefore,the efficacy of SPC as a dietary protein source for large yellow croaker is better than that of cottonseed meal,and dietary cottonseed meal content should not exceed 9%.The results of this study indicate that in low-fishmeal large yellow croaker diets,SPC has a higher priority as a protein source than that of cottonseed meal.关键词
棉粕/大豆浓缩蛋白/生长/饲料利用效率/抗氧化能力/饲料成本Key words
cottonseed meal/soy protein concentrate/growth/feed utilization efficiency/antioxidant capacity/feed cost分类
农业科技引用本文复制引用
刘平丁,雷明滔,范洁梁,王岩..棉粕和大豆浓缩蛋白作为大黄鱼饲料蛋白源的比较研究[J].中国水产科学,2026,33(4):47-61,15.基金项目
国家重点研发计划项目(2024YFD2401704). （2024YFD2401704）
