The effect of parasitism on the protein and fatty acid content of the Nile tilapia, Oreochromis niloticus and African catfish, Clarias gariepinus (Teugals) in River Kaduna, Nigeria

2002 ◽  
Vol 17 (2) ◽  
Author(s):  
B. C. ONUSIRIUKA
Keyword(s):  
Fatty Acid ◽  
Oreochromis Niloticus ◽  
Acid Content ◽  
Nile Tilapia ◽  
Fatty Acid Content ◽  
Clarias Gariepinus ◽  
African Catfish

scholarly journals Nutritional Value of African Catfish (Clarias gariepinus) Meat

2021 ◽  
pp. 31-39
Author(s):  
H. E. Abdel- Mobdy ◽  
H. A. Abdel-Aal ◽  
S. L. Souzan ◽  
A. G. Nassar
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Amino Acid ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Clarias Gariepinus ◽  
Amino Acid Content ◽  
African Catfish ◽  
Oleic Acid Content ◽  
High Oleic

The purpose of this study was to figure out catfish meat's chemical composition, mineral content, amino acid composition, and fatty acid profile. Moisture, protein, lipid, and ash content were measured at 71.30%, 19.03%, 8.10%, and 1.5%, respectively. Catfish meat had higher levels of calcium, phosphorus, and iron, with 304.82, 279.45 and 17.03 mg/100 g, respectively. The essential amino acid content was 41.81 g/100g protein. Oleic, linoleic, and palmitic acids were the most common fatty acids present in catfish meat. Oleic acid made up more than a third of the fatty acid content in catfish meat. Because of its high oleic acid content, catfish meat should be considered because it has been linked to a lower risk of cardiovascular disease.

scholarly journals Exogenous enzymes and probiotics alter digestion kinetics, volatile fatty acid content and microbial interactions in the gut of Nile tilapia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Roel M. Maas ◽  
Yale Deng ◽  
Yueming Dersjant-Li ◽  
Jules Petit ◽  
Marc C. J. Verdegem ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Acid Content ◽  
Nile Tilapia ◽  
Volatile Fatty Acid ◽  
Fatty Acid Content ◽  
Microbial Interactions ◽  
Gut Health ◽  
Negative Effects ◽  
Exogenous Enzymes ◽  
Digestion Kinetics

AbstractSustainable aquafeed production requires fishmeal replacement, leading to an increasing use of plant-derived ingredients. As a consequence, higher levels of antinutritional substances, such as non-starch polysaccharides and phytate, are present in aquafeeds, with negative effects on fish performance, nutrient digestibility and overall gut health. To alleviate these negative effects, providing exogenous digestive enzymes and/or probiotics can be an effective solution. In this study, we tested the effect of dietary supplementation of enzymes (phytase and xylanase) and probiotics (three strains of Bacillus amyloliquefaciens) on nutrient digestion kinetics and volatile fatty acid content along the gut, and the distal gut microbiome diversity in Nile tilapia. Chyme volatile fatty content was increased with probiotic supplementation in the proximal gut, while lactate content, measured for the first time in vivo in fish, decreased with enzymes along the gut. Enzyme supplementation enhanced crude protein, Ca and P digestibility in proximal and middle gut. Enzymes and probiotics supplementation enhanced microbial interactions as shown by network analysis, while increased the abundance of lactic acid bacteria and Bacillus species. Such results suggest that supplementation with exogenous enzymes and probiotics increases nutrient availability, while at the same time benefits gut health and contributes to a more stable microbiome environment.

scholarly journals Clock‐Controlled Endogenous Melatonin Rhythms in Nile Tilapia (Oreochromis niloticus niloticus) and African Catfish (Clarias gariepinus)

2008 ◽  
Vol 25 (1) ◽  
pp. 31-49 ◽  
Author(s):  
Carlos Christian Martinez‐Chavez ◽  
Sammi Al‐Khamees ◽  
Antonio Campos‐Mendoza ◽  
David James Penman ◽  
Herve Migaud
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Endogenous Melatonin

scholarly journals Comparative Histomorphological and Histochemical Studies on the Oesophagus of Nile Tilapia Oreochromis niloticus and African Catfish Clarias gariepinus

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Ashraf Sayed Awaad ◽  
Usama Kamal Moawad ◽  
Mohamed Gomaa Tawfiek
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Feeding Habits ◽  
Periodic Acid ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Epithelial Surface ◽  
Oesophageal Mucosa ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Mucosal Folds

The present work aimed to describe and compare both gross and microscopic structure of the oesophagus of Nile tilapia (Oreochromis niloticus) and African catfish (Clarias gariepinus). For this purpose, 60 specimens of oesophagus of Nile tilapia (omnivorous fish) and African catfish (carnivorous fish) were collected and processed. Anatomically, the oesophagus of both species appeared as a short tube with longitudinal mucosal folds. Using scanning electron microscope, the epithelial surface of the esophagus showed primary and secondary mucosal folds in both species while tertiary folds were observed in that of tilapia only. Histologically, the oesophagus consisted of four distinct layers: mucosa, submucosa, muscularis, and serosa. The oesophageal mucosa consisted of stratified epithelium with few mucous secreting cells in catfish and many mucous secreting cells in tilapia. Two types of mucous secreting cells reacted positively with both periodic acid shiff (PAS) and alcian blue (AB); rounded and elongated cells that were recognized in the esophageal epithelium of tilapia and only elongated oval cells were observed in that of catfish. In conclusion, the obtained histomorphological differences in esophagus of both fish species may be attributed to their different feeding habits and type of food.

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