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首页> 外文期刊>The Progressive Fish-Culturist >MUSCLE PIGMENTATION AND PLASMA CONCENTRATIONS OF ASTAXANTHIN IN RAINBOW TROUT, CHINOOK SALMON, AND ATLANTIC SALMON IN RESPONSE TO DIFFERENT DIETARY LEVELS OF ASTAXANTHIN
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MUSCLE PIGMENTATION AND PLASMA CONCENTRATIONS OF ASTAXANTHIN IN RAINBOW TROUT, CHINOOK SALMON, AND ATLANTIC SALMON IN RESPONSE TO DIFFERENT DIETARY LEVELS OF ASTAXANTHIN

机译：虹鳟鱼，膳食中鲑鱼黄OUT素的肌肉色素沉着和血浆浓度对黄素不同饮食水平的响应

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摘要

Pigmentation development was studied in rainbow trout Oncorhynchus mykiss, chinook salmon O. tshawytscha, and Atlantic salmon Salmo salar fed similar practical diets supplemented with 40, 70, or 100 mg astaxanthin/kg of diet. The initial mean body weights of the respective species were 158, 198, and 191 g. The rainbow trout were reared in freshwater at 6.0-11.3 degrees C, the chinook salmon in seawater at 8.8-14.4 degrees C, and the Atlantic salmon in seawater at 7.1-12.7 degrees C. The response of flesh pigmentation to dietary pigment was most rapid in rainbow trout and slowest in Atlantic salmon. Chinook salmon showed the greatest variation in response to the different dietary concentrations of astaxanthin, followed by rainbow trout and Atlantic salmon. In both rainbow trout and Atlantic salmon, pigmentation was most intense in the distal section and decreased anteriorly. In chinook salmon, pigmentation was most intense in the midsection, followed by the anterior section and then the distal section. Postprandial plasma concentrations of astaxanthin did not fully explain the differences among the species in the rare of tissue accumulation of pigment, especially when the diet contained a high concentration of astaxanthin.
机译：在虹鳟Oncorhynchus mykiss，奇努克鲑O.tshawytscha和大西洋鲑Salmo salar饲喂类似的实际饮食，每公斤饮食添加40、70或100 mg虾青素后，研究了色素沉着的发展。各个物种的初始平均体重为158 g，198 g和191 g。虹鳟鱼在6.0-11.3摄氏度的淡水中饲养，海水中的chinook鲑鱼在8.8-14.4摄氏度，海水中的大西洋鲑鱼在7.1-12.7摄氏度。鱼肉色素沉着对膳食色素的响应最快在虹鳟鱼中，在大西洋鲑鱼中最慢。奇努克鲑鱼对虾青素的不同饮食浓度表现出最大的变化，其次是虹鳟鱼和大西洋鲑鱼。在虹鳟鱼和大西洋鲑鱼中，色素沉着在远端区域最强烈，而在前方减少。在奇努克鲑鱼中，色素沉着在中段最强烈，其次是前段，然后是远端段。餐后血浆中虾青素的浓度不足以充分解释物种之间在色素组织积累方面的差异，特别是当饮食中含有高浓度的虾青素时。

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