Effects of graded levels of taurine supplement to the no-fishmeal diet on the growth and physiology in juvenile yellowtail Seriola quinqueradiata
Effects of graded levels of taurine supplement to the no-fishmeal diet on the growth and physiology in juvenile yellowtail Seriola quinqueradiata
复制标题
无鱼粉饲料中分级添加牛磺酸对五辐鰤幼鱼生长和生理的影响
DOI：
10.11233/aquaculturesci.65.239
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
T. Masumoto
中科院分区：
文献类型：
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作者：
Yasuaki Matsumoto;Lao Thao;K. Morioka;H. Fukada;T. Masumoto
在以大豆浓缩蛋白为基础的无鱼粉饲料中添加0、1、2、3、4和5%的牛磺酸，对黄尾鱼幼鱼进行为期10周的饲养试验。最终的体重和组织（红肌肉和肝脏）牛磺酸浓度在鱼喂0%的饮食治疗中是最低的，但他们显着改善的饮食补充1%的牛磺酸。此外，添加1%牛磺酸的饲料改善了组织中的硒浓度和红细胞压积值。另一方面，饲料添加水平为3%是必要的，以提高血浆渗透压，防止绿色肝。因此，即使组织中牛磺酸浓度在1%的添加水平（饲料中0.8%的含量）下可以饱和，但在无鱼粉饲料中添加超过3%的牛磺酸（饲料中2.4%的含量）对维持本研究中使用的黄尾鱼的正常生理是必要的。即使大豆蛋白是膳食蛋白质来源，黄尾鱼也可能不会增加膳食牛磺酸的需要量。
A feeding experiment was conducted in juvenile yellowtail to examine the effects of six graded levels of supplementation taurine (0, 1, 2, 3, 4 and 5%) to a soy protein concentrate based no-fishmeal diet for 10 weeks. The final body weight and tissue (red muscle and liver) taurine concentrations in fish fed 0% diet were the lowest among the dietary treatment but they were significantly improved by a diet supplemented with 1% taurine. Furthermore, a diet supplemented with 1% taurine improved tissue seine concentration, and hematocrit value. On the other hand, dietary supplementation level of 3% was necessary to improve plasma osmotic pressure and prevent green liver. Therefore, even though the tissue taurine concentration could be saturated with supplementation level at 1%(0.8% content in a diet), more than 3% taurine supplementation (2.4% content in a diet) to no-fishmeal diet is necessary to maintain the normal physiology of yellowtail used in this study. Yellowtail might not increase dietary taurine requirement even soybean protein is a dietary protein source.