Mohammad Abul HASSAN, Mohammad AFTABUDDİN, Dharmendra Kumar MEENA, Sayanti SAHA, Subhadeep DASGUPTA, Anil Prakash SHARMA

Effects of black thorn, Kaempferia galanga single or in Combination with yeast probiotic on feed palatability, growth performance and product quality of Labeo rohita Fingerling (Hamilton)

A 63 -days indoor feeding trial was conducted to assess the growth performance of Labeo rohita fingerling (69.82±0.53 g) fed with three experimental diets containing black thorn, Kaempferia galanga as natural attractant, yeast as probiotic and their combination. Comparable feed consumption in groups fed with attractant (86.54 g) and combination of attractant and probiotic (85.17 g) compa red to group fed probiotic only (74.10 g) were observed. Combined use of attractant and probiotic in the diet resulted in highest percent live weight gain (105.30%) compared to the individual inclusion of attractant (60.88%) a nd probiotic (72.63%). Comparison of feed conversion ratio (FCR) indicated better conversion when fed with the diet containing both the attractant and probiotic (3.69) compared to the other diets containing either probiotic (4.96) or attractant (5.20). Further, highest accretion of carcass protein was recorded in groups fed diet with combination of additives (254.79%), followed by attractant (193.03%) and probiotic (159.29%) alone. RNA/DNA ratio in both liver and muscle exhibited a significant (P<0.05), linear increase in groups fed diet with only probiotics followed by attractant alone, and the combination of both probiotics and attractant accordingly. Present study revealed better efficacy of feed supplemented with Kaempferia galanga in feed consumption, growth promotion and utilization in L. rohita fingerlings, as compared to that with probiotic. However, the combination of probiotics and attractant could confer the better results as compared to their individual dietary inclusion.

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