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Title: Efecto del prebiótico fructooligosacárido (FOS) sobre la fisiología digestiva y barrera intestinal en larvas de pejelagarto (Atractosteus tropicus)
Author ID: info:eu-repo/dai/mx/cvu/833118
metadata.dc.contributor: CARINA SHIANYA ALVAREZ VILLAGOMEZ info:eu-repo/dai/mx/cvu/227436
Abstract: This study was conducted to investigate the effects of dietary fructooligosaccharides (FOS) on the growth, survival, digestive enzymes activity, and the expression of intestinal barrier genes in tropical gar (Atractosteus tropicus) larvae. A total of 960 larvae (0.030 ± 0.006 g) were fed three diets supplemented with increasing FOS concentrations (2.5, 5.0, and 7.5 g/kg) and a control diet for 15 days. Results revealed that a 7.5 g/kg FOS supplementation improved weight gain (WG), the specific growth rate (SGR), and survival (p < 0.05). Furthermore, 5 g/kg FOS supplementation increased alkaline protease and amylase activities and induced a downregulation of the claudin-15 gene expression (p < 0.05). Meanwhile, the inclusion of 7.5 g/kg FOS induced the upregulation of mucin 2 (muc-2), and the tight junction genes zo-1, zo-2, and claudin-3 (p < 0.05). At the same time, FOS inclusion did not increase the pro-inflammatory cytokine il-8 expression. We can conclude that 5-7.5 g/kg FOS supplementation improves the growth performance, survival, digestive capacity absorption of nutrients and could contribute to the reinforcement of the intestinal barrier function of tropical gar larvae.
Issue Date: Sep-2020
Language: spa
Appears in Collections:Ciencias Biológicas (DACBIOL)

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