期刊
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
卷 86, 期 3, 页码 1517-1523出版社
ACAD BRASILEIRA DE CIENCIAS
DOI: 10.1590/0001-3765201420130088
关键词
fish nutrition; histology; Piaractus mesopotamicus; prebiotics
资金
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [Proc. 05/51967-2]
Intensification of aquaculture production systems exposes fish to numerous stressors, which may negatively affect their growth and limit profitability of aquaculture systems. This study determined effects of increasing levels of dietary mannanoligosaccharides on growth and intestine morphology of pacu. Fish (44.04 g) were randomly distributed into 32 tanks (500 L; 10 fishes per tank) and fed during 63 days with a commercial diet supplemented with 0.0; 0.2; 0.4; 0.6; 0.8; 1.0; 1.5 and 2.0% dietary mannanoligosaccharides. Growth parameters did not differ (P>0.05) between fish fed control diet and mannanoligosaccharide supplemented diets. Intestinal villi perimeter was performed in fish fed control diet, 0.4 and 1.5% dietary mannanoligosaccharides and also showed no differences (P>0.05) between treatments. Dietary supplementation of mannanoligosaccharides unclear did not have effects on pacu. Studies on the characterization of intestinal microbiota together with experiment that reproduce commercial fish production systems rearing conditions are necessary to determine the effective use of this dietary supplement for the species.
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