Original scientific paper

Mucosubstances of the digestive tract mucosa in northern pike (Esox lucius L.) and european catfish (Silurus glanis L.)

Zdravko Petrinec ; Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Srebrenka Nejedli ; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Snježana Kužir ; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Anđelko Opačak ; Department of Zootechnics, Faculty of Agriculture, University of J. J. Strossmayer, Osijek

Abstract

The distribution and quality of mucosubstances in the digestive tract of pike (Esox lucius) and catfish (Silurus glanis) is described. The digestive tract of pike and catfish is short, in accordance with their predatory nature, and consists of oesophagus, stomach and intestine. The oesophagus is short, with longitudinal folds. The mucosa of pike oesophagus is stratified and contains two types of mucous cells: in contrast to catfish oesophagus there is only one type of mucous cell. The stomach is an elongated sac-like structure with glands in lamina propria. In pike the gastric glands are simply tubular, but in catfish they are branched tubular and surrounded by connective tissue. The intestines in both fishes are short with many intestinal villi. Many goblet cells are situated between superficial epithelial cells.

Keywords

pike; catfish; digestive tract; mucosubstances; histochemistry

Hrčak ID:

31908

URI

https://hrcak.srce.hr/31908

Publication date:

19.8.2005.

Article data in other languages: croatian

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