Lipidic and proteic absorption in digestive tract of tropical fat snook (Centropomus parallelus, POEY 1860)

Borges, João Carlos Shimada; Pressinotti, Leandro Nogueira; Gomes, Vicente; Silva, José Roberto Machado Cunha da

doi:10.1016/j.jembe.2010.02.013

Cited by 11 publications

(6 citation statements)

References 33 publications

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“…Digestive variation of alkaline protease might have been associated with the specific function of digestive structure (Pérez‐Jiménez et al, 2009). Although no data were available on the distribution of pancreatic tissue in the common snook or any other member of the genus Centropomus , Borges et al (2010) reported that in the fat snook ( Centropomus parallelus ), protein absorption occurs only in the rectum. Machado et al (2013) found no histological and histochemical differences in the digestive tract between both common and fat snooks.…”

Section: Discussionmentioning

confidence: 99%

Physiological and metabolic protein‐sparing effects of dietary lipids on common snookCentropomus undecimalis(Bloch, 1792) juveniles

Arenas

Álvarez‐González

Barreto³

et al. 2021

Aquacult Nutr

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Carnivorous common snook (Centropomus undecimalis) has potential for aquaculture, but its protein requirement in diet is 500 g kg−1 and the energetic role of lipids in this species has not been explored. Thus, this study investigated the ability of juvenile common snook (8.7 ± 1.2 g) to use dietary lipids as an energy source. The fish were fed four practical diets with two protein levels (400 and 500 g kg−1) associated with two lipid levels (60 and 120 g kg−1) for 12 weeks. Growth performance significantly improved with increasing dietary lipid levels, but no significant difference was observed at the protein level. Fish fed the 400:60 (protein: lipid level) diet exhibited significantly higher feed conversion ratios than those fed 400:120, 500:60 and 500:120 diets, but fish fed the 400:120 diet had significantly higher protein efficiency ratios. Juvenile common snook showed the ability to modulate digestive protease and lipase secretion when dietary protein or lipid levels were modified. The activity of alanine aminotransferase decreased as the dietary lipid level increased (p < .05), while fructose‐1 and 6‐bisphosphatase activities were not significantly affected by dietary protein or lipid levels. Glucose‐6‐phosphate dehydrogenase, 6‐phosphogluconate dehydrogenase and pyruvate kinase activities increased as dietary protein and lipid levels increased (p < .05). The results of this study indicate that an increase in dietary lipid level has a protein‐sparing effect and that the diet containing 400 g kg−1 protein with 120 g kg−1 lipid is suitable for growth and effective protein utilization in common snook.

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Section: Discussionmentioning

confidence: 99%

Physiological and metabolic protein‐sparing effects of dietary lipids on common snookCentropomus undecimalis(Bloch, 1792) juveniles

Arenas

Álvarez‐González

Barreto³

et al. 2021

Aquacult Nutr

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“…For histological analysis, the fourth right branchial arch was excised, and the gills fixed in cold fixative McDowell solution (McDowell and Trump, ; Borges et al, ). The gill tissue was dehydrated twice in 70% ethanol for 30 min each, twice in 95% ethanol for 30 min each, twice in 100% ethanol for 30 min each, once in ethanol combined with resin for 6 h, and then embedded in historesin (Leica‐Historesin, Embedding Kit, Nussloch/Heidelberg).…”

Section: Methodsmentioning

confidence: 99%

Effects of trophic levels (chlorophyll and phosphorous content) in three different water bodies (urban lake, reservoir and aquaculture facility) on gill morphology of Nile tilapia (Oreochromis niloticus)

et al. 2012

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Histological and ultrastructural analyses of gills were observed in Nile tilapia collected from three different waterbodies in southeast Brazil: an urban lake in a park in the city of Sa˜o Paulo, a reservoir in a rural city, and a commercial aquaculture facility. These waterbodies were analyzed and classified as hypereutrophic, eutrophic, and supereutrophic, respectively, with 310.00, 94.00, 28.00 of phosphate (PO 2À 4 lg L À1 ) and 65.49, 24.95, 12.83 of chlorophyll (lg L À1 ). A significant difference in the histological alterations index (HAI) was observed only in fish from the urban lake, with the presence of cell hypertrophy, hyperplasia, aneurism, and other alterations. When compared to the other groups, a large quantity of rodlet cells was also observed in the urban group. These results demonstrate the correlation of eutrophic states of water with gill morphology. Also discussed is the premise that large amounts of organic material dissolved in water can alter the morphology of the fish gills. U.S.

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“…To visualize these organelles, Hayat () recommended use of an osmium tetroxide and zinc iodide method to improve contrast of organelle ultrastructure. Ultrastructural studies have also been used to evaluate the absorption in fishes (Sire et al, ; Hernandez‐Blazquez et al, ; Borges et al, ), highlighting the importance of cytochemistry to understanding morphophysiology of the digestive tract. This study aimed to investigate cytochemical features, with emphasis on the analysis of membranous organelles, acid glycoconjugates and lipids and how they differ between the cells and different regions of the digestive tract mucosa in Hemisorubim platyrhynchos (Valenciennes 1840).…”

Section: Introductionmentioning

confidence: 99%

Cytochemical features of the digestive tract mucosa of Hemisorubim platyrhynchos (Siluriformes: Pimelodidae)

Faccioli

Chedid

Mori

et al. 2018

Journal of Fish Biology

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Membranous organelles, acid glycoconjugates and lipids were characterized in the digestive tract mucosa of Hemisorubim platyrhynchos by cytochemistry techniques. Two types of mucous-secreting cells were observed in the digestive tract epithelium: goblet cells in the oesophagus and intestine and epithelial cells in the stomach. These cells had a Golgi apparatus more developed than the other cell types. The cytochemical analysis revealed that secretory granules are reactive to acid glycoconjugates, varying in reaction intensity according to the region of the digestive tract. Acid glycoconjugate reactions were also observed in oesophageal epithelial cell microridges and in enterocyte microvilli. In the digestive tract, acid glycoconjugates act to protect the epithelial surface, increasing mucous viscosity, which facilitates the passage of food, prevents the binding of parasites and facilitates their removal. Through lipid staining, a coated membrane was observed around each secretory granule of the oesophageal and intestinal goblet cells, while gastric epithelial cells granules were fully reactive. Oxynticopeptic cells of the gastric glands showed lipid droplets in the cytoplasm and also in the mitochondrial matrix, which act as an energy reserve for these cells that have a high energy demand. Enterocytes showed a well-developed smooth endoplasmic reticulum, especially in the apical region of the cell, being related to absorption and resynthesis of lipids.

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Lipidic and proteic absorption in digestive tract of tropical fat snook (Centropomus parallelus, POEY 1860)

Cited by 11 publications

References 33 publications

Physiological and metabolic protein‐sparing effects of dietary lipids on common snookCentropomus undecimalis(Bloch, 1792) juveniles

Physiological and metabolic protein‐sparing effects of dietary lipids on common snookCentropomus undecimalis(Bloch, 1792) juveniles

Effects of trophic levels (chlorophyll and phosphorous content) in three different water bodies (urban lake, reservoir and aquaculture facility) on gill morphology of Nile tilapia (Oreochromis niloticus)

Cytochemical features of the digestive tract mucosa of Hemisorubim platyrhynchos (Siluriformes: Pimelodidae)

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