Journal
ITALIAN JOURNAL OF ANIMAL SCIENCE
Volume 12, Issue 1, Pages -Publisher
TAYLOR & FRANCIS LTD
DOI: 10.4081/ijas.2013.e22
Keywords
sharpsnout seabream; mannan oligosaccharide; inulin; meat quality
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One hundred forty-four sharpsnout seabream of about 100 g initial body weight were randomly stocked in 12 experiment tanks (180 L). Testing conditions included 12 fish per tank, with triplicate tanks for treatment. The experimental period lasted 150 days. Average water temperature was 21.9 +/- 1.6 degrees C, salinity was 30.0% and pH ranged from 7 to 8, throughout the experiment. A control diet (FM) was made from fish meal. One similar diet (SBM) was made with approximately 40% of the protein supplied by soybean meal. The remaining two diets (SBM-MOS and SBM-INU) were formulated adding 8 g of mannanoligosaccharide (MOS) and inulin (INU) per kg of the SBM diet, respectively. The results showed that mean final weight (average values 234.4 g), specific growth rate (average values 0.585), feed conversion rate (average values 2.05) and protein efficiency ratio (average values 1.01) were unaffected by MOS or INU supplementation to SBM diet. Body proximate composition was affected by MOS and INU supplementation. Fish fed SBM-MOS and SBM-INU diets showed the highest moisture level and the lowest lipid content. Also the total polyunsaturated fatty of the lipids was reduced by MOS and INU in comparison to SBM diet alone.
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