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STUDIES ON CAROTENOID TRANSPORT IN RED-AND WHITE-FLESHED CHINOOK SALMON (ONCORHYNCHUS TSHAWYTSCHA)

红肉和白肉奇努克鲑鱼 (Oncorhynchus Tshawytscha) 中类胡萝卜素转运的研究

基本信息

批准号：
03660214
负责人：
ANDO Seiichi
金额：
$ 1.09万
依托单位：
KAGOSHIMA UNIVERSITY, FACULTY OF FISHERIES
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03660214/
关键词：
Chinook salmon Salmonids Carotenoids Lipoprotein

项目摘要

Chinook salmon are unique among Pacific salmon (Oncorhynchus spp.) because immature fish feeding at sea develop one of two distinct muscle colors, and are known as red- and white-fleshed chinook. These color types are under strong genetic control. The red-fleshed chinook salmon, like the other Pacific salmon, are more common, their muscle color ranging from pink to deep red due to the deposition of carotenoids. The white-fleshed ones apparently do not deposit carotenoids in their muscle. The muscle carotenoid levels of red- and white-fleshed chinook salmon are frequently examined with the guidance of the two color types, but there are very few reports describing the carotenoid distribution in various tissues other than muscle.Catotenoid distribution was examined in muscle, ovary, integument, and serum from red- and white-fleshed chinook salmon along with their muscle proximate compositions. There were no significant differences in muscle compositions of moisture, protein, and lipid except for the carotenoid levels between red- and white-fleshed salmon. Similar carotenoid levels of ovaries were found between red- and white-fleshed chinook salmon, although the muscle carotenoid level of white-fleshed salmon was apparently low compared to redfleshed salmon. This suggests that white-fleshed chinook salmon have the ability to accumulate the carotenoids in their ovaries but not muscle. The white-fleshed chinook salmon may be devoid of carotenoid receptors in their muscle and this seems to be the reason for the failure to accumulate the carotenoids in their muscle.

奇努克鲑鱼是太平洋鲑鱼（Oncorhynchus spp.）因为在海上觅食的未成熟的鱼会发展出两种不同的肌肉颜色之一，被称为红色和白色的奇努克。这些颜色类型受到强烈的遗传控制。红肉的奇努克鲑鱼，像其他太平洋鲑鱼一样，更常见，由于类胡萝卜素的沉积，它们的肌肉颜色从粉红色到深红色不等。而白色肉质的鱼显然不会将类胡萝卜素存款在肌肉中。肌肉类胡萝卜素水平的红色和白色肉奇努克鲑鱼经常检查的指导下，两种颜色类型，但有很少的报告描述的类胡萝卜素分布在各种组织以外的肌肉。类胡萝卜素分布检查在肌肉，卵巢，体壁，血清从红色和白色肉奇努克鲑鱼沿着与他们的肌肉近似组成。有没有显着差异的水分，蛋白质和脂质的肌肉成分，除了类胡萝卜素水平之间的红色和白色的肉鲑鱼。类似的类胡萝卜素水平的卵巢之间发现红色和白色的肉奇努克鲑鱼，虽然肌肉类胡萝卜素水平的白色肉鲑鱼明显低于红肉鲑鱼。这表明，白色的奇努克鲑鱼有能力在卵巢中积累类胡萝卜素，而不是肌肉。白色的奇努克鲑鱼肌肉中可能缺乏类胡萝卜素受体，这似乎是未能在肌肉中积累类胡萝卜素的原因。