The effect of dietary docosahexaenoic acid on schooling behaviour and brain development in larval yellowtail
The effect of dietary docosahexaenoic acid on schooling behaviour and brain development in larval yellowtail
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DOI：
10.1111/j.1095-8649.2001.tb02323.x
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发表时间：
2001-06
影响因子：
2
通讯作者：
Y. Ishizaki;R. Masuda;K. Uematsu;K. Shimizu;M. Arimoto;T. Takeuchi
中科院分区：
文献类型：
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作者：
Y. Ishizaki;R. Masuda;K. Uematsu;K. Shimizu;M. Arimoto;T. Takeuchi
研究了喂食富含油酸 (OA)、二十碳五烯酸 (EPA) 或二十二碳六烯酸 (DHA) 的丰年虫 10 天的黄尾鰤幼虫的成群行为和大脑生长情况。 DHA 组的幼虫以平行方向游动，而 EPA 组的幼虫仅表现出聚集。 OA组的幼虫是分散的。与OA组相比，DHA和EPA组的最近邻距离显着更小，并且与其他组相比，DHA组的最近邻角值显着更小。在两项实验中，DHA 组的视顶盖 (TO) 相对体积显着更大，并且在一项实验中，该组的小脑 (CE) 相对体积也显着更大。膳食 DHA 可能对幼虫阶段大脑的发育至关重要，尤其是 TO 的发育，而 TO 的发育可能是学校教育行为个体发育的关键因素。
The onset of schooling behaviour and brain growth in larval yellowtail Seriola quinqueradiata larvae fed on Artemia enriched with oleic acid (OA), eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA) for 10 days was investigated. Larvae from the DHA groups schooled with parallel orientation while those of the EPA groups showed only aggregation. Larvae of the OA groups were dispersed. DHA and EPA groups showed significantly smaller nearest neighbour distance compared with OA groups, and DHA groups showed significantly smaller values of nearest neighbour angle compared with the other groups. The relative volume of the tectum opticus (TO) of the DHA group was significantly larger in two experiments and also the relative volume of the cerebellum (CE) of that group was significantly larger in one experiment. Dietary DHA is probably critically important for the development of the brain, particularly TO, during the larval stages, and that development of TO may be the key factor of the ontogeny of schooling behaviour.