Morphological, histological and histochemical analysis of the digestive tract of Trachelyopterusstriatulus (Siluriformes: Auchenipteridae)

Santos, Marcella L. dos; Arantes, Fábio Pereira; Pessali, Tiago Casarim; Santos, José Eduardo dos

doi:10.1590/s1984-46702015000400005

Cited by 25 publications

(33 citation statements)

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“…Several authors have reported the presence of taste buds in the cranial portion of fish oesophagus (Jaroszewska et al., ; Santos, Arantes, Pessali et al., ; Xiong et al., ). The absence of taste buds in the oesophagus of the pacamã, as well as in Odontesthes bonariensis , (Diaz, Escalantes, Garcia, & Goldemberg, ), Clarias batrachus and Serrasalmus nattereri (Raji & Norouzi, ), suggests that food selection is performed in the oral cavity after prey capture (Albrecht et al., ).…”

Section: Discussionmentioning

confidence: 99%

“…The digestive tract of fish is a widely studied topic, from the classic works of Al‐Hussaini (); Angelescu and Gneri () to recent works, such as Germano et al. (); Santos, Arantes, Santiago, and Santos (), Santos, Arantes, Pessali, and Santos (); Fagundes, Rotundo, and Mari (); Andrade, Guimarães, Rotundo, and Mari (). These studies provide crucial information for the cultivation and conservation of species (Santos, Arantes, Santiago et al., ; Wilson & Castro, ).…”

Section: Introductionmentioning

confidence: 99%

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Morphological characterisation of the digestive tract of the catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes, Pseudopimelodidae)

et al. 2017

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The anatomical arrangement of the digestive tract and the length (cm) of the oesophagus and intestine of the catfish Lophiosilurus alexandri were described, and the intestinal coefficient was determined. L. alexandri oesophagus is short, in median position, and presents longitudinally folded mucosa, whilst its epithelium is stratified and non-keratinised, with mucous, claviform and epithelial cells. Stomach has "C" shape, with folded mucosa along cardiac region, disordered in the fundic region, and directed to the sphincter in the pyloric region. Its epithelium is simple prismatic, and cardiac and fundic portions have gastric glands. Cranial intestine is formed by pyloric flexure and descending loop attached to the right side of stomach. Middle intestine is winding and positioned to the right of caudal portion of stomach. Caudal intestine is linear and with a median position up to the anus. Intestinal coefficient was 1.39 ± 0.30 cm. Epithelium is simple prismatic with brush border and contains epithelial and goblet cells. Caudal region has highest concentration of goblet cells. Were detected neutral glycoproteins, carboxylated and sulphated acid glycoconjugates for mucous cells and goblet cells, and neutral glycoproteins for the apical region of gastric epithelial cells. Morphological features could be related to piscivorous species feeding habit. K E Y W O R D S catfish, intestinal coefficient, mucosa morphometry, mucosubstances

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Morphological characterisation of the digestive tract of the catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes, Pseudopimelodidae)

et al. 2017

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“…The IC of A. schlegelii is relatively low (1.08) and appears to be in the range predictable for carnivorous teleosts (0.2–2.5). The IC sort for omnivore teleosts is 0.6–8.0, and herbivore teleosts is 0.8–15.0 being greater (Al‐Hussaini, ; Dos Santos, Arantes, Pessali, & dos Santos, ; Dos Santos, Arantes, Santiago, & Dos Santos, ). Cataldi et al.…”

Section: Discussionmentioning

confidence: 99%

Gross anatomical and histomorphological features of the Acanthopagrus schlegelii digestive tract (Bleeker 1854) Perciformes, Sparidae

et al. 2017

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Acanthopagrus schlegelii is an autochthonous teleost species concerning the remarkable economic importance and prevalent fish cultivated in China as well as in different nations of South-East Asia. Little is known about the digestive tract (DT) morphology of A. schlegelii. Therefore, anatomical and histomorphological aspects of A. schlegelii DT were examined by light and scanning electron microscope (SEM).Anatomically, DT of A. schlegelii was mainly formed of oesophagus, well-developed stomach and fingers like pyloric caeca (four in number), intestinal regions and rectum. Histomorphologically, oesophagus occurred as a shorter tube-like organ presenting a longitudinal folded mucosa that connects oropharynx cavity to stomach.Stomach was a muscular thick-wall organ that included three regions, thickly longitudinal folds were observed in the first (cardiac) and last (pyloric) regions, whereas the second (fundic) region showed folds in different directions. Long villi were observed within pyloric caeca and anterior intestine. Tunica muscularis appeared narrow in the anterior intestine, whereas thicker in the posterior part of the intestine.Collectively, anatomical and histomorphological aspects of A. schlegelii DT are consistent with the carnivorous habit of this species. These data could be a potential source to modify better methods of nutrition and identify the DT pathogenic conditions in farming of this fish. K E Y W O R D SAcanthopagrus schlegelii, anatomy, digestive system, histomorphology, scanning electron microscope

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“…The esophagus in the majority of teleost fishes is lined with stratified squamous epithelium. The closely-fitted multiple epithelial layers help to withstand various mechanical and chemical abrasions as the food enters the alimentary canal (Machado et al, 2013; Raji & Norouzi, 2010; Santos et al, 2015a; Vieira-Lopes et al, 2013). In contrast, the Asian seabass esophagus was found to be lined with simple columnar epithelium only.…”

Section: Discussionmentioning

confidence: 99%

Morpho-histological characterisation of the alimentary canal of an important food fish, Asian seabass (Lates calcarifer)

Purushothaman

Lau

Saju

et al. 2016

PeerJ

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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 goblet cells that increased from anterior to posterior intestine, with 114 ± 9, 153 ± 7 and 317 ± 21 goblet cells in the anterior, mid and posterior regions, respectively. The intestinal epithelium stained positively for PAS, but the staining was stronger for acidic glycoproteins. The rectum was similar to intestine, except for increased goblet cell numbers (anterior rectum: 529 ± 26; posterior rectum: 745 ± 29). Gut morpho-histology did not respond to salinity changes, however, there was a significant reduction of mucosal height, goblet cell numbers and muscularis thickness upon food deprivation.

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Morphological, histological and histochemical analysis of the digestive tract of Trachelyopterusstriatulus (Siluriformes: Auchenipteridae)

Cited by 25 publications

References 5 publications

Morphological characterisation of the digestive tract of the catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes, Pseudopimelodidae)

Morphological characterisation of the digestive tract of the catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes, Pseudopimelodidae)

Gross anatomical and histomorphological features of the Acanthopagrus schlegelii digestive tract (Bleeker 1854) Perciformes, Sparidae

Morpho-histological characterisation of the alimentary canal of an important food fish, Asian seabass (Lates calcarifer)

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