东北地区池塘养殖条件下白斑狗鱼肌肉营养成分分析

目的]为评价在不同地区养殖白斑狗鱼的营养品质提供依据。方法]从新疆地区引进白斑狗鱼夏花鱼种,在东北地区池塘养殖条件下对白斑狗鱼的肌肉营养成分进行分析。结果]白斑狗鱼的鲜样肌肉水分、灰分、粗蛋白和粗脂肪含量分别为78.58%、2.20%、18.36%和1.32%,肌肉干样的灰分、粗蛋白、粗脂肪含量为87.83%、85.70%和6.16%。18种氨基酸总量为15.12%(占鲜样),其中人体必需的8种氨基酸含量为6.07%(占鲜样),占氨基酸总量的40.18%;4种鲜味氨基酸含量为5.75%。必需氨基酸指数(EAAI)为103。DHA和EPA含量丰富,占脂肪酸总量的23.74%,特别是DHA含量占脂肪酸总量的22.97%。结论]在池塘养殖条件下白斑狗鱼仍属于一种高蛋白、低脂肪的优质鱼类,具有较高的开发养殖价值。

Analysis of Muscular Nutritional Components of Esox lucius under the Conditions of Pond Culture in Northeast China

Objective] The research aimed to provide basis for evaluating the nutritional quality of Esox lucius cultured in different areas.Method] The summer fingerlings of E.lucius were introduced from Xinjiang and the nutritional components in the muscle of E.lucius under the conditions of pond culture in Northeast China were analyzed.Result] The water content,ash content,crude protein content and crude fat content in the fresh muscle samples of E.lucius were 78.58％,2.20％,18.36％ and 1.32％ respectively.The ash content,crude protein content and crude fat content in the dry muscle samples of E.lucius were 87.83％,85.70％ and 6.16％ respectively.The total content of 18kinds of amino acids in fresh samples was 15.12％,in which the content of 8 essential amino acids from human was 6.07％,accounting for 40.18％ of the total amino acid.The content of four kinds of delicious amino acids was 5.75％.Essential amino acid index （EAAI） was 103.There were abundant of DHA and EPA in the muscle of E.lucius,accounting for 23.74％ of fatty acids,particularly the amount of DHA accounted for 22.97％ of the total fatty acid.Conclusion] E.lucius under the conditions of pond culture was a kind of high-quality fishes with high protein and low fat,with higher development and culture values.