Comparative Histomorphological and Histochemical Studies on the Oesophagus of Nile Tilapia <i>Oreochromis niloticus</i> and African Catfish <i>Clarias gariepinus</i>

<div>Photomicrographs of sections in the esophagus of Nile tilapia (a) showing two types of mucous secreting cells strongly PAS positive; small elongated cells at the superficial part of the epithelium (Arrows) and numerous large rounded cells (R) distributed all over the epithelial cells over the undifferentiated epithelial cells and moderate PAS reaction in the underlying propria-submucosa and in African catfish (b) showing positive PAS reaction of the mucous secreting cells (arrows) occupied a superficial position. PAS, ×100.</div>

Journal of Histology

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Figure 7

Figure 7: Comparative Histomorphological and Histochemical Studies on the Oesophagus of Nile Tilapia <i>Oreochromis niloticus</i> and African Catfish <i>Clarias gariepinus</i> 

Figure 7 | Comparative Histomorphological and Histochemical Studies on the Oesophagus of Nile Tilapia Oreochromis niloticus and African Catfish Clarias gariepinus 