Chaitanawisuti, N., Kritsanapuntu, A., Natsukari, Y., & Kathinmai, S. (2001). Effects of feeding rates on the growth, survival and feed utilization of hatchery‐ reared juvenile spotted babylon Babylonia areolata Link 1807 in a flowthrough seawater system. Aquaculture research, 32(9), 689-692.
Abstract The effects of feeding levels on the growth, survival and feed utilization of hatchery‐reared juvenile Babylonia areolata Link 1807 were assessed at four daily rations of 3%, 5%, 10% and 15% of body weight. Three duplicated groups of juveniles (mean initial body weight 0.26
± 0.3 g) were stocked into indoor
rearing tanks supplied with a flowthrough system of ambient natural seawater for 150 days. Growth in body weight differed significantly (P
0.05) among the
various feeding levels. Final body weight of individual snails increased with
increased feeding ration at a particular ration level. Meanwhile, increasing the daily ration to 10% and 15% significantly improved growth and feed utilization efficiency. The food conversion ratios (FCRs) for the 3% and 5% feeding levels were significantly lower than those for the other feeding levels. Final survival was best at feeding levels of 10% and 15% of body weight, ranging between 96.9% and 97.3%, but was very poor at the 3% and 5% feeding levels, ranging from only 49.5% to 54.8%.