Asian-Pacific Aquaculture 2019

June 19 - 21, 2019

Chennai Tamil Nadu - India

EFFECT OF RATION RESTRICTION ON COMPENSATORY GROWTH OF INDIAN POMPANO Trachinotus mookalee FINGERLINGS

Biji Xavier*, Vamsi Balla, Ritesh Ranjan, Sekar Megarajan, Suresh Babu, P. P and Shubhadeep Ghosh
Visakhapatnam Regional Centre of Central Marine Fisheries Research Institute,, Pandurangapuram, A. U. P.O., Visakhapatnam, Andhra Pradesh- 530003
bijicmfri@gmail.com
 

T. mookalee is a potential candidate species for marine and brackishwater aquaculture possessing high economic value. It is recognized as promising candidate species for mariculture because of their attractive appearance, fast growth rate, adaptability to culture environment, acceptability to formulated feed, firm white as well as tasty meat and high market demand.The present study aimed to investigate the effect of different feeding regimes (feed restriction) on compensatory growth of Indian pompano fingerlings. 180 fingerlings were distributed into three treatments in triplicate. Fingerlings were fed with artificial commercial diet of 1.8mm pellet size containing 45% CP. The treatments followed were: fingerlings fed with 5% of biomass (control); fingerlings fed with 3% of biomass (T1) and fingerlings fed with 1% of biomass (T2). At the end of 45days culture the fingerlings from T1 and T2 were divided equally in two groups as T1A and T1B (fed for 15days @5% of biomass), T2A and T2B (fed for 30days @5% of biomass) respectively. Analysis of growth data revealed that during the first phase of the trial for 60days; the T1A and T1B performed with better WG % (175.31±0.31), FCR (1.49) and SGR (1.69) when compared to T2 groups. After 75days of culture, the same (T1 A and T1B) performed significantly (P< 0.05) better with WG % (269.46±1.26), FCR (1.43) and SGR (1.75) when compared to control groups of fingerlings. Cost of production per kg of fish reduced by 23% with the feeding strategy of restricted feeding with 3% of biomass for 45days followed by normal feeding with  5% biomass for next 30days. This feeding strategy can be practically applied in grow out of Indian pompano especially when cultured in high stocking density with minimum feeding for long duration followed by normal feeding for short duration which will reduce the cost of production for pompano during culture.