Critical involvement of dietary docosahexaenoic acid in the ontogeny of schooling behaviour in the yellowtail
Critical involvement of dietary docosahexaenoic acid in the ontogeny of schooling behaviour in the yellowtail
复制标题
膳食二十二碳六烯酸在黄尾鱼群学行为个体发育中的关键作用
DOI：
10.1111/j.1095-8649.1998.tb00996.x
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发表时间：
1998
影响因子：
2
通讯作者：
K. Imaizum
中科院分区：
文献类型：
--
作者：
R. Masuda;T. Takeuchi;K. Tsukamoto;Y. Ishizaki;M. Kanematsu;K. Imaizum
为了研究中枢神经系统在行为个体发生中的作用，用不同质量的饲料饲养了黄尾七叶鳗幼虫和幼鱼。以富含油酸（OA）、二十碳五烯酸（EPA）或两种不同浓度的二十二碳六烯酸（DHA）的黄尾草（LT 7 mm， 13日龄）为饲料，饲喂12 d，分析其行为发育、生长、存活、活性和脂肪酸组成。饲喂富含dha的青蒿的黄尾鱼在11 mm时表现出相互吸引的行为，而饲喂富含OA或epa的黄尾鱼在相同大小时则没有这种行为。OA组的鱼表现出较差的生长、存活和活动指数，而EPA组的鱼与两个DHA组相似。此外，包括OA组在内的大多数测试鱼都表现出明显的光动力学反应。饲料的脂肪酸组成反映在鱼体的脂肪酸组成上。因此，饲料DHA在幼虫期被认为是必要的发展，在学校的行为在黄尾鱼。
To investigate involvement of the central nervous system in the ontogeny of behaviour, diets of differing quality were used to rear yellowtail Seriola quinqueradiata larvae and juveniles. Artemia nauplii enriched with oleic acid (OA), eicosapentaenoic acid (EPA), or two different concentration levels of docosahexaenoic acid (DHA) were fed to yellowtail larvae (LT 7 mm; 13 days old) for 12 days, and their behavioural development was analysed together with growth, survival, activity and fatty acid composition. Yellowtail fed with DHA–enriched Artemia showed mutual attraction behaviour at 11 mm LT, while those fed with OA– or EPA–enriched Artemia did not show this behaviour at the same size. While fish in the OA group showed poor growth, survival and activity index, fish in the EPA group were similar to the two DHA groups. In addition, most fish tested, including the OA group, showed clear optokinetic responses. Fatty acid composition of the diet was reflected in that of the fish body. Therefore, dietary DHA in the larval stage is considered to be essential for the development of schooling behaviour in the yellowtail.