Dietary mannan oligosaccharide and Bacillus subtilis in diets for Nile tilapia (Oreochromis niloticus)
| Autor: | Rafael Vieira de Azevedo, João Carlos Fosse Filho, Samuel Louzada Pereira, Leonardo Demier Cardoso, Dalcio Ricardo de Andrade, Manuel Vazquez Vidal Júnior |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Acta Scientiarum: Animal Sciences, Vol 38, Iss 4 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1806-2636 1807-8672 |
| DOI: | 10.4025/actascianimsci.v38i4.31360 |
| Popis: | A six week study was conducted to investigate the supplementation of prebiotic (Mannan oligosaccharide – MOS, from yeast Saccharomyces cerevisiae), probiotic (Bacillus subtilis – BS, C-3102 strain) and their combination in diets for Nile tilapia. 192 fishes (4.03 ± 0.28 g) were distributed into 16 tanks (40-L), in a completely randomized design (n=4). The following treatments were evaluated: control; prebiotic - 2 g MOS kg-1; probiotic - 2 g BS kg-1 and synbiotic - 1 g MOS kg-1 plus 1 g BS kg-1. Fishes fed diets pre-, pro- and synbiotic supplemented performed better in average daily gain, feed conversion rate, specific growth rate, protein efficiency ratio, carcass yield, total and standard length and body height than those maintained on control diets. The probiotic supplementation resulted in higher villus height and intestinal perimeter ratio than the control diet while the pre- and synbiotic supplementation in diets resulted in higher intestinal perimeter ratio. Carcass protein and ether extract were, respectively, higher and lower in fish fed synbiotic diets than other fish. The results of this study indicated that the mannan oligosaccharide and Bacillus subtilis supplementation, isolated or combined (synbiotic), could improve growth, body index, intestine morphometry and carcass composition in Nile tilapia. |
| Databáze: | Directory of Open Access Journals |
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