引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 164次   下载 126 本文二维码信息
码上扫一扫!
分享到: 微信 更多
大黄鱼幼鱼饲料中大豆磷脂油与菜籽油的适宜配比
闫春为1, 陈乃松1,2,3, 李自强1, 连雪原1, 王孟乐1
1.农业农村部鱼类营养与环境生态研究中心 上海 201306;2.水产科学国家级 实验教学示范中心 上海 201306;3.上海水产养殖工程技术研究中心 上海 201306
摘要:
配制浓缩大豆磷脂油与精制菜籽油的添加比例分别为0 : 6、2 : 4、4 : 2和6 : 0的4种等氮、等能和等脂的饲料(P0R6、P2R4、P4R2和P6R0),在海水浮式网箱中,养殖初始体重为(20.84±0.05) g的大黄鱼(Larimichthys crocea)幼鱼51 d,每个处理组设3个重复,每个重复40尾鱼。通过评定2种油脂的不同配比对大黄鱼幼鱼的生长、体组成和脂肪酸组成的影响,以得出大黄鱼幼鱼饲料中大豆磷脂油与菜籽油的适宜配比。结果显示,各组实验鱼的存活率均高于91%,且显著差异(P>0.05)。P2R4组实验鱼的特定生长率显著高于P4R2和P6R0组(P<0.05)。P2R4组实验鱼的蛋白质沉积率和脂肪沉积率显著高于P0R6和P6R0组(P<0.05)。P0R6和P2R4组全鱼的粗脂肪含量显著高于P4R2和P6R0组(P<0.05)。全鱼和肌肉的脂肪酸组成受实验鱼所摄食饲料的脂肪酸组成的影响。P6R0饲料显著降低了实验鱼的肝脏脂肪含量和肥满度(P<0.05)。研究表明,大黄鱼幼鱼饲料中浓缩大豆磷脂油与精制菜籽油的适宜配比为2 : 4。
关键词:  大豆磷脂  菜籽油  大黄鱼  生长  体组成  脂肪酸组成
DOI:
分类号:
基金项目:
Suitable ratio of soybean phospholipid oil to rapeseed oil in the diet of juvenile large yellow croaker (Larimichthys crocea)
YAN Chunwei1, CHEN Naisong1,2,3, LI Ziqiang1, LIAN Xueyuan1, WANG Mengle1
1.Research Center of the Agriculture and Rural Affairs Ministry on Fish Nutrition and Environmental Ecology at Shanghai Ocean University, Shanghai 201306;2.National Demonstration Center on Experiment Teaching of Fisheries Science at Shanghai Ocean University, Shanghai 201306;3.Shanghai Engineering Research Center of Aquaculture, Shanghai 201306
Abstract:
Four isonitrogenous, isoenergetic, and isolipidic diets with varying ratios (0 : 6, 2 : 4, 4 : 2, and 6 : 0) of concentrated soybean phospholipid oil (P) to refined rapeseed oil (R) (P0R6, P2R4, P4R2, and P6R0) were formulated to determine the suitable ratio of soybean phospholipid oil to rapeseed oil in the diet of juvenile large yellow croaker (Larimichthys crocea). Each diet was randomly assigned to triplicate sea floating cages of 40 fish [initial body weight (20.84±0.05) g]. Fish were fed to apparent satiation twice daily (5:30 and 16:00) over 51 d. The results suggested that the survival rates of tested fish were higher than 91%, with no significant differences among treatments (P>0.05). The special growth rate was significantly higher with fish fed P2R4, compared with those fed P4R2 and P6R0 (P<0.05). Higher lipid and protein deposition rates were found in P2R4-fed fish compared with those fed the other treatments (P<0.05). Contents of crude protein in whole body and muscle were not significantly affected by the ratio of soybean phospholipid oil to rapeseed oil in diets (P>0.05), but were significantly higher in the viscera of P0R6-fed fish compared with the other treatments (P<0.05). Concentrations of crude lipid in the whole body of P0R6- and P2R4-fed fish were significantly higher than those in P4R2-and P6R0-fed fish (P<0.05). The fatty acid profile of the whole body and muscle was similar to that of the fed diet. The ratio of soybean phospholipid oil to rapeseed oil in diets had no significant effect on hepatosomatic index and viscerosomatic index (P>0.05). The P6R0 diet significantly reduced the liver lipid content and condition factor of test fish (P<0.05). Under the conditions of this study, the suitable ratio of concentrated soybean phospholipid oil to refined rapeseed oil in the diets of juvenile large yellow croaker was 2 : 4, based on growth performance, body composition, and fatty acid composition.
Key words:  Soybean phospholipid  Rapeseed oil  Large yellow croaker (Larimichthys crocea)  Growth  Body composition  Fatty acid composition