Histochemical study of lipid absorption in two teleost fishes.

Absorption of lipid in the different regions of the intestine of two teleost fishes has been studied histochemically at different time intervals of 4, 10 and 20 h. All the three portions of the intestine have the absorptive capacity. However, it varies from one region to another. The lipid has been absorbed in the form of lipoid particles and lipoid goblets. It is also recorded here that some lipoid droplets are absorbed by pinocytosis across the brush border membrane. The lipid absorbed was localized in the brush border cells, in intercellular spaces of connective tissue, in submucosa, in between serosa and muscularis, in the lumen of blood capillaries and mesentric lymphatic vessels but was absent in muscularis and serosa.