ISSN (Online): 2456-6268
Journal of Fisheries and Life Sciences

Journal of Fisheries and Life Sciences

2017, Vol. 2 Issue 1, Part JUNE
Effect of feeding rate and feeding frequency in mass culture of Brachionus plicatilis in semi-continuous method with a yeast-based diet
Author(s): Kalidoss Radhakrishnan, Samraj Aanand, Sethu Rameshkumar, Fernando Divya
Abstract: The present study was performed in semi-continuous method to calculate the optimum feeding rate and feeding frequency of Brachionus plicatilis with a yeast-based diet at 0.2g, 0.3g, and 0.4g yeast fed to a million rotifer in cement cisterns. Rotifer ind./ml, egg bearing ratio and population growth were evaluated in this study. The rotifer ind./ml was significantly (p< 0.05) greater in 0.3g of yeast (241 ind./ml) than that of the 0.2 of yeast (226 ind./ml) and 0.4g of yeast (178 ind./ml). Besides, the three-time feeding frequency had the highest rotifer (ind./ml) of 356 ind./ml and the lowest in 2 times feeding of 246 ind./ml as similarly kind of observation too recorded in egg-bearing ratio and population growth. Among the critical water quality parameters, ammonia was the only parameter that significantly (p<0.05) altered the rotifers density and egg bearing ratio.
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