微胶囊饲料饲喂大黄鱼仔稚鱼的氨基酸营养评价  

Amino acid nutrition evaluation of microencapsulated feed for large yellow croaker(Larimichthys Crocea)larvae

作　　者：陈启发 梁萍[2] 邱曼丽[2] 朱庆国[2] 林建斌[2] 林美凤 潘瑞珍 CHEN Qifa;LIANG Ping;QIU Manli;ZHU Qingguo;LIN Jianbin;LIN Meifeng;PAN Ruizhen(Aquatic Feed Research Society of Fujian,Fuzhou,Fujian Province 350002,China;Freshwater Fisheries Research Institute of Fujian,Fuzhou,Fujian Province 350002,China)

机构地区：[1]福建省水产饲料研究会,福建福州350002 [2]福建省淡水水产研究所,福建福州350002

出　　处：《中国饲料》2023年第13期95-100,共6页China Feed

基　　金：福建省海洋服务与渔业高质量发展专项资金项目“海带多活性成分提取关键技术研究与应用”(FJHY-YYKJ-2022-2-4);福建省属公益类科研院所基本科研专项“大黄鱼仔稚鱼微胶囊饲料研发”(2014R1002-1);福建省海洋高新产业发展专项项目“海洋生物活性物质微囊化关键技术研发与应用”(闽海洋高新[2014]22号)。

摘　　要：通过对大黄鱼稚鱼体氨基酸组成、生长性能的观察比较,探讨大黄鱼仔稚鱼微胶囊饲料氨基酸营养的合理性;选用微胶囊饲料替代部分生物饵料驯育10日龄大黄鱼仔鱼,进行为期31 d的饲养试验。采用饲料氨基酸平衡性的化学评价指标评价微胶囊饲料蛋白质的营养价值。以35日龄大黄鱼稚鱼体蛋白氨基酸组成作为参比系列,计算大黄鱼微胶囊饲料必需氨基酸比值系数(RC)。结果表明:赖氨酸的RC值最小,为0.7232,是大黄鱼微胶囊饲料的第一限制性必需氨基酸;赖氨酸湿基含量4.07%,为饲料蛋白的8.09%;蛋氨酸湿基含量1.59%,为饲料蛋白的3.16%。大黄鱼仔稚鱼微胶囊饲料必需氨基酸指数(EAAI)为93.52,杰卡德(Jaccard)系数为0.944,氨基酸比值系数分(SRC)为81.20;必需氨基酸干基含量(∑EAA)为23.71%;非必需氨基酸干基含量(∑NEAA)为27.07%;氨基酸干基总含量为50.78%,接近粗蛋白质干基含量(51.60%)。综上,大黄鱼微胶囊饲料9种必需氨基酸含量组成与35日龄大黄鱼体蛋白氨基酸组成之拟合关联相似度很高,接近理想蛋白质氨基酸模式,平衡度良好,可以为10日龄后期大黄鱼仔稚鱼提供良好的氨基酸营养。微胶囊饲料替代25%的生物饵料用于饲喂大黄鱼10日龄仔鱼培育稚幼鱼效果较好,具有可行性。The microencapsulated feed for large yellow croaker(Larimichthys Crocea)larvae was developed to replace part of the biological bait to breed 10 days old large yellow croaker larvae for 31 days.;The nutritional value of feed protein was evaluated by chemical evaluation index of feed amino acid balance.The amino acid composition of the 35-day-old large yellow croaker larvae was used as a reference to calculate the essential amino acid ratio coefficient(RC).The results showed that the RC value of lysine was the smallest of 0.7232,which was the first restricted essential amino acid for large yellow croaker larvae;the wet base content of lysine was 4.07%,accounting for 8.10%of feed protein;the wet base content of methionine was1.59%,accounting for 3.16%of feed protein.The microencapsulated feed was with essential amino acid index(EAAI)93.52,Jaccard coefficient 0.944,amino acid ratio coefficient(SRC)81.20,essential amino acid dry content(∑EAA)23.71%,non-essential amino acid dry content(∑NEAA)27.07%,the total content of amino acid on dry basis 50.78%,which was close to the crude protein(51.60%)on dry basis.The results indicated that the similarity of the amino acid composition of the content of 9 essential amino acids in the microencapsulated feed with 35-day-old rhubarb fish protein was very high,close to the ideal protein amino acid model,and with good balance,which could provide balanced amino acid nutrition for 10-day-old large yellow croaker larvae;The microencapsulated feed could replace 25%of biological bait of 10-day-old large yellow croaker larvae.

关 键 词：大黄鱼 微胶囊饲料 氨基酸 评价 必需氨基酸指数 杰卡德(Jaccard)系数 氨基酸比值系数分 

分 类 号：S963[农业科学—水产养殖]