不同饲料对虹鳟鱼肌肉品质和水质的影响

Effect of different feeds on meat and water quality of Oncorhynchus mikiss

实验以虹鳟鱼为研究对象,进行为期56 d鱼体对不同饲料的摄食及生长实验并对两个实验组池水的水质进行监测,同时比较研究不同饲料对虹鳟鱼的摄食、生长以及饲料利用的影响。实验结果表明:两种饲料对鱼肉的氨基酸组成及营养指数的影响均无显著差异,但2#料对鱼肉脂肪含量及脂肪酸组成的影响优于1#料,说明2#料中所添加的脂肪品质优于1#料。另外,两种料对养殖水质均无显著影响(P>0.05)。

The research aimed to evaluate the effects of two different commercial feeds on rainbow trout meat quality and aquaculture water quality.The experiment lasted 8 weeks.The results showed that the different feeds had no significant differences on amino acid composition,amino acid score（AAS）,chemi cal score（CS） and essential amino acid index（EAAI）of rainbow trout fish meat（P0.05）.But 2# feed had better effects on crude fat and fatty acid composition of fish meat than that of 1# feed（P0.05）.There was no significant difference on aquaculture water quality in the two feeds（P0.05）.