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Abstract
The objective of the study was to evaluate the most suitable mixed feeding schedule to improve feed utilization and reduce cost for grow-out culture of Thai frog (Rana tigerina). The experiment was demonstrated as completely randomized design (CRD) including (NT - control) daily satiation feeding; (NT2:1) satiation feeding for 2 days and starvation for 1 day; (NT4:1) satiation feeding for 4 days and starvation for 1 day; (NT6:1) satiation feeding for 6 days and starvation for 1 day, with 3 replications per treatment. Frog fingerlings (initial weight of 18.3 g) were stocked in composite tanks (capacity of 500 L) with a density of 60 frogs/tank and fed 3 times a day (8:00, 17:00, and 20:00h) using 35% crude protein commercial pellet feed (Ranalis). After 60 days of the experiment, the result showed that the growth performance of frog (WG = 106.7 g, DWG = 1.78 g/day) in NT6:1 was the highest and was not different from that of NT - control (p > 0.05). However, the feed conversion rate (1.17) in NT6:1 was statistically lower than those in NT - control (p < 0.05). The survival rate fluctuated from 83.9 - 88.9% and was not statistically significant difference among treatments (p > 0.05). The feed cost for 1 kg weight gain of frog in NT6:1 was reduced by 17.5% as compared to NT - control. In conclusion, the feeding schedule of satiation feeding for 6 days and starvation for 1 day should be applied in grow-out of Thai frogs.