仔魚の消化管の比較研究-V : キンギョ仔魚の腸管上皮における脂肪吸収

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In the goldfish larvae, numerous fat droplets were detected in the cytoplasm of columnar epithelial cells of the mid gut after administration of boiled egg-yolk emulsions with corn oil. No conspicuous changes of invaginations were observed in the intermicrovillous spaces of the cells loaded heavily with fat droplets. On the other hand, vigorous pinocytosis occurred in the columnar epithelial cells of the posterior gut, which was probably implicated in protein absorption. Observations supported the hypothesis that in teleost larvae fat is mainly absorbed by the mid gut before the constriction by which it is distinguishable from the posterior gut.
公益社団法人日本水産学会の論文