Affiliation:
1. ICAR-Central Institute of Fisheries Education, Rohtak Centre
Abstract
Abstract
This study aimed to evaluate the effect of mannan oligosaccharide (MOS) on the growth, body composition, digestive enzyme and gut microbes in Cirrhinus mrigala also known as Cirrhinus cirrhosus fingerlings. Random distribution of 180 acclimatized fingerlings of mrigal with avg. body weight of 3.1 ± 0.05 g were made in triplicate with stocking of 15 fish per tank for four experimental groups such as control, 0.2% MOS, 0.4% MOS, and 0.6% MOS, using completely randomized design (CRD) for a period of 60 days. The results revealed that significantly higher growth in terms of weight gain%, SGR, FCR, FER and PER was found in the group fed 0.6% MOS as compared to control. Significant difference (p < 0.05) observed for body composition and digestive enzyme activity in among the treatments groups. Evaluation of autochthonous intestinal microbiota revealed that the total heterotrophic bacteria (THB) counts and bacillus counts increased in all MOS fed was detected to increase in 0.6% MOS fed group. The study showed improved nutrient utilization in terms of growth performance and digestive enzyme activity in the group fed with 0.6% MOS, which can be recommended as an ideal prebiotic in the diet of mrigal.
Publisher
Research Square Platform LLC
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