Effect of Prebiotic Mannanoligosaccharide on Growth Performance, Survival and Body Composition of Schizothorax zarudnyi

Subject Areas : New Technologies in Aquaculture Development

Received: 2021-02-02 Accepted : 2021-02-02 Published : 2014-02-20

Keywords: growth, Survival, body composition, Schizothorax zarudnyi, Keywords: Mannan-Oligosaccharide,

Abstract :

Abstract[1] Effect of dietary mannanoligosaccharide (MOS; active MOS®) on growth, survival and body composition of Schizothorax zarudnyi were investigated for 45 days. Basal diet were supplemented with 0 (control), 1.0, 2.0 and 3.0 g MOS/kg commercial carp diet containing 35% protein and 12% lipid in a totally randomized design trial in 3 triplicates. The experiment was carried out in 1600 liters plastic tanks (600 liters water). Eleven fish with initially average weight 64.11±3.45 g were stocked in tanks and fish were fed up two meals a day. There were significant differences in growth and feeding parameters between fish fed control and MOS supplementation diets (P<0.05). Group treated with 3 g MOS /kg showed significant differences in protein efficiency ratio and weight gain (P<0.05). Price index and difference food conversion ratio in fishes fed the diets supplemented with 2 and 3 g/kg prebiotic mannanoligosaccharide significantly (P<0.05) lower than control group. At during of trial, the fish were healthy and no mortality occurred. Results showed supplementation of 3.0 g MOS/kg in the fish fed diet caused increasing significantly in protein rate (P<0.05) The highest and the lowest protein rate were observed in 3.0 g kg-1 MOS and control treatment, respectively. There were significant differences in fat and ash rate among experimental groups (P<0.05). There were shown the highest fat rate in the fish fed diet 1.0 g MOS /kg and the highest ash rate in the fish fed diet 3.0 g MOS /kg, but no significant differences in moisture among experimental groups (P>0.05). The result indicated that 3.0 g MOS/kg MOS can improve growth performance, final production and body composition (protein rate) of S. zarudnyi and it is appropriate for supplementation in the diet of S. zarudnyi. * Corresponding Authors; Email: [e-mail]