Related Papers
Egyptian Journal of Aquatic Biology and Fisheries
Histological variations and adaptability in some digestive organs of the thinlip grey mullet, Chelon ramada (Risso, 1827)
Ahmad Azab
PeerJ
Morpho-histological characterisation of the alimentary canal of an important food fish, Asian seabass (Lates calcarifer)
2016 •
syed musthaq
Asian seabass (Lates calcarifer) is a food fish of increasing aquaculture importance. In order to improve our understanding on the digestive system and feeding of this species, morphological and histological features of the gut were studied. Morphologically, the Asian seabass gut is defined by a short and muscular esophagus, well-developed stomach and comparatively short intestine. Mucous secreting goblet cells reactive to PAS (Periodic Acid Schiff) and AB (Alcian Blue) stain were present throughout the esophagus. The stomach was sac-like and could be distinguished into the cardiac, fundic and pyloric regions. Gastric glands and mucus cells were predominately present in the cardiac and fundic regions. Five finger-like pyloric caeca were present between the stomach and intestine. The intestine was a short, tubular structure with no morphological differences between the various regions. Histologically, the intestinal regions were similar, the main difference being in the number of gob...
Aquaculture
Organogenesis of the digestive system in Neotropical carnivorous freshwater catfish Hemisorubim platyrhynchos (Siluriformes: Pimelodidae)
2016 •
Carlos Vicentini
Egyptian Journal of Aquatic Biology and Fisheries
Comparative study on the histochemical structures of stomach, pyloric caeca and anterior intestine in the grey mullet, Mugil cephalus (Linnaeus, 1758)
2020 •
Ahmed Alabssawy
Anatomy and Embryology
Histology of the digestive tract of the freshwater stingray Himantura signifer Compagno and Roberts, 1982 (Elasmobranchii, Dasyatidae)
2006 •
Eduardo Rocha
Animals
The Alimentary Tract of African Bony-Tongue, Heterotis niloticus (Cuvier, 1829): Morphology Study
Rosaria Laurà
A morphological study of the alimentary tract, from the oropharyngeal cavity to the rectum, including the attached glands, of African bony-tongue, Heterotis niloticus (Cuvier, 1829) was carried out by gross anatomy, and light microscope analysis. This study aimed to give a deeper knowledge of the alimentary tract morphological features of this species of commercial interest. H. niloticus is distinguished by individual morphological characteristics showing a digestive tract similar to that of reptiles and birds. Within the oropharyngeal cavity, two tubular structures with digitiform ends are arranged on both lateral sides of the triangular tongue. The oropharyngeal cavity connects the stomach by a short esophagus. This latter is adapted to mechanical trituration, and it is divided into a pars glandularis and a thick-walled pars muscularis. The gizzard flows into the anterior intestine and two blind pyloric appendages, which exhibit specific functions, including immune defense for the...
The morphology of the post-gastric alimentary canal in teleost fishes: a brief review (Seyed Mahdi Banan Khojasteh, 2012, 3(2), 71-88)
International Journal of Aquatic Science
The morphology of the post-gastric alimentary canal in teleost fishes: a brief review
Seyed Mahdi Banan Khojasteh
Neotropical Ichthyology
Morphological study of the digestive tract of the cardinal tetra, Paracheirodon axelrodi (Characiformes: Characidae)
Andrea Gabriela Pozzi
The cardinal tetra Paracheirodon axelrodi is a species of the family Characidae of great interest as an ornamental fish. Many aspects of the biology of this species are still unknown. The present work presents a complete description of the different components of the digestive tract of P. axelrodi, analyzing its global anatomical arrangement, the adjacent glands (liver and pancreas) and the previously ignored pyloric caeca, using histological and histochemical techniques with light microscopy and scanning electron microscopy. Three levels of analysis were performed: macroscopic anatomy, histology of the gastrointestinal tract and scanning electron microscopy of mucosal surfaces. The intestinal coefficient (Ci) of P. axelrodi calculated here (0.94) is within the expected range for a carnivorous species. The anatomy of the alimentary and the resulting Ci is consistent with carnivorous diet in line with dietary studies in the wild in this species. The digestive tract, including adjacen...
Acta Adriatica
Histological structure and histochemical composition of the digestive tract of salema porgy, Sarpa salpa (Linnaeus, 1758) (Teleostei: Sparidae)
2021 •
Ivana Restovic
The histological structure and histochemical characteristics of the digestive tract of five specimens of salema porgy (Sarpa salpa, L.) were analysed using haematoxylin-eosin, Alcian blue/PAS and orcein-Giemsa staining techniques. The digestive system of salema porgy consists of esophagus, stomach and intestines with associated organs such as liver, pancreas and gallbladder. The wall of esophagus, stomach, intestines and gallbladder has four distinctive layers: the mucosa, the submucosa, the muscular and outer layer, serosa or adventitia. The mucosa consists of two different layers: epithelium and lamina propria. Mucosa of the upper part of the digestive system is layered by single squamous epithelium, while those of lower part of the digestive system is layered by single columnar epithelium. The submucosa is a layer made of connective tissue and blood vessels. In most parts of the digestive system the muscular layer consists of two parts: circular and longitudinal. The exception is...
