Effects of dietary mannan oligosaccharides on growth, body composition, and intestine and liver histology of rainbow trout, Oncorhynchus mykiss
Israeli Journal of Aquaculture - Bamidgeh, vol.59, no.3, pp.182-188, 2007 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 59 Issue: 3
- Publication Date: 2007
- Journal Name: Israeli Journal of Aquaculture - Bamidgeh
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.182-188
- Keywords: Growth, Histology, Mannan oligosaccharides, MOS, Rainbow trout
- Hatay Mustafa Kemal University Affiliated: Yes
Abstract
This study investigated the effects of dietary mannan oligosaccharides (MOS) on growth, body composition, and small intestine and liver histology of rainbow trout (Oncorhynchus mykiss Walbaum). Experimental diets were supplemented with 0 (control), 1.5, 3.0, or 4.5 g MOS per kg commercial trout feed and randomly assigned to treatment groups. Enhanced growth performance was generally observed in fish fed the diet supplemented with 1.5‰ MOS. Villi of fish fed diets supplemented with 1.5 or 3.0‰. MOS were longer than those of fish fed 4.50‰ or no dietary MOS (p<0.05). Protein contents increased as the rate of MOS increased (p<0.05). There were no significant differences in feed conversion ratio, protein efficiency ratio, or hepatosomatic index (p>0.05) and MOS had no detrimental effects on the intestine.