摘要
【目的】为了评价黄姑鱼专用配合饲料的养殖效果,本研究比较了黄姑鱼专用配合饲料与冰鲜杂鱼对黄姑鱼生长性能、饲料利用及肌肉营养品质的影响差异。【方法】实验设计冰鲜杂鱼组、市售配合饲料组和黄姑鱼专用配合饲料组,每组3个平行,为期8周。【结果】专用配合饲料组黄姑鱼增重率、特定生长率和蛋白质效率分别为211.52%、2.03%/d和160.92%,显著高于冰鲜杂鱼组(149.97%、1.64%/d、67.04%)和市售配合饲料组(187.33%、1.88%/d、144.37%)。冰鲜杂鱼组饲料系数显著高于专用配合饲料组和市售配合饲料组。配合饲料组的肝体比和脏体比显著高于冰鲜杂鱼组。专用配合饲料组黄姑鱼肌肉脂肪含量显著高于冰鲜杂鱼和市售配合饲料组,水分含量则显著低于冰鲜杂鱼组和市售配合饲料组。冰鲜杂鱼组肌肉中总氨基酸含量、必需氨基酸总量、花生四烯酸(ARA)和DHA含量均显著高于配合饲料组。肌肉组织切片观察结果显示,三组黄姑鱼肌肉纤维纹理清晰,排列紧密,均为不规则多边形,但冰鲜杂鱼组肌纤维密度显著高于配合饲料组。【结论】黄姑鱼专用配合饲料组在生长性能和饲料利用方面优于冰鲜杂鱼组,但在肌肉品质上,冰鲜杂鱼组在肌肉氨基酸和LC-PUFA含量方面要优于专用配合饲料组。本研究可为黄姑鱼高效健康养殖及其人工配合饲料的优化提供理论依据。
Nibea albiflora is an important cage-cultured fish in the East China Sea.An 8-week feeding trial was conducted to evaluate the effects of a special formulated feed and chilled trash fish on the growth performance,feed utilization,and muscle nutrient quality of juvenile N.albiflora.A total of 540 healthy yellow drum with an initial body weight of(34.60±0.05)g were randomly divided into three groups,with three replicates per group.The groups were fed either special formulated feed,commercial formulated feed,or chilled trash fish throughout the trial.Results indicated that the weight gain rate(WGR),specific growth rate(SGR),and protein efficiency rate(PER)of fish fed special formulated feed were 211.52%,2.03%/d,and 160.92%,respectively.These values were significantly higher than those of fish fed the chilled trash fish diet(149.97%,1,64%/d,67.04%)and the commercial formulated diet(187.33%,1.88%/d,144.37%)(P<0.05).The feed conversion rate(FCR)of fish fed chilled trash fish was significantly higher than that of fish fed formulated feed(P<0.05).Fish fed formulated feed exhibited significantly higher hepatosomatic index(HSI)and viscerosomatic index(VSI)compared to those fed chilled trash fish(P<0.05).The muscle lipid content of fish fed the special formulated feed was significantly higher than that of fish fed commercial formulated feed and chilled trash fish,while the muscle moisture content was significantly lower(P<0.05).The total amino acid(TAA),essential amino acid(EAA),arachidonic acid(ARA),and docosahexaenoic acid(DHA)contents of fish fed chilled trash fish were significantly higher than that of fish fed formulated feed(P<0.05).Histological staining of muscle tissue with H.E revealed that muscle fibers of fish fed formulated feed and chilled trash fish were irregular polygons with clear texture and tight arrangement.However,the muscle fiber density of fish fed chilled trash fish was significantly higher than that of fish fed formulated feed(P<0.05).In conclusion,the growth performance and feed utilization of fish fed the special formulated feed were superior to that of fish fed chilled trash fish.However,the muscle amino acid and long-chain polyunsaturated fatty acid(LC-PUFA)contents of fish fed chilled trash fish were higher than that of fish fed the special formulated feed.This study provides a theoretical basis for the efficient and healthy culture of N.albiflora and the optimization of its formulated feed.
作者
王立改
姚高华
马石鹏
李海东
陈睿毅
谭朋
胡伟华
徐冬冬
WANG Ligai;YAO Gaohua;MA Shipeng;LI Haidong;CHEN Ruiyi;TAN Peng;HU Weihua;XU Dongdong(Zhejiang Provincial Key Lab of Mariculture&Enhancement,Zhejiang Marine Fisheries Resarch Institute,Zhoushan 316000,China;Zhejiang Fisheries Techonology Extension Center,Hangzhou 310012,China;College of Fisheries,Zhejiang Ocean University,Zhoushan 316000,China)
出处
《水产学报》
北大核心
2025年第5期133-143,共11页
Journal of Fisheries of China
基金
浙江省自然科学基金(LY24C190004)
浙江省“三农九方”科技协作计划项目(2023SNJF078)
浙江省杰出青年基金(LR21C190001)
国家自然科学基金(31972785)。
关键词
黄姑鱼
专用配合饲料
冰鲜杂鱼
生长性能
肌肉品质
Nibea albiflora
special formulated feed
chilled trash fish
growth performance
muscle nutrient quality
作者简介
第一作者:王立改,从事海水鱼类营养饲料研发及代谢调控研究,E-mail:wligaikuaile@126.com;姚高华,从事鱼类养殖技术研究,E-mail:807719971@qq.com;通信作者:徐冬冬,研究员,从事海水鱼类遗传学和遗传育种研究,E-mail:xudong0580@163.com。
