외해가두리 시험양식 대상종으로 선정된 돌돔에 대하여 저수온기($15^{circ}C$)에 1년어(62.7 g)와 2년어(344.7 g)에 대한 적정 배합사료 공급량을 조사한 결과, 돌돔 1년어(62.7g)의 적정배합사료 공급율은 어체중의 1.61% (만복의 90%)일 때 증체율 및 사료효율에서 높은 값을 나타내었다. $15^{circ}C$에서 돌돔 2년어(344.7 g)에 대하여 적정 공급율을 조사한 결과는 어제중의 0.28% (만복의 80%)일 때 가장 높은 성장을 하였으나 시험구간에 오차가 컸고, 전반적으로 낮은 값을 나타내었다.
A 6 and 8-week feeding trial was conducted to determine optimal feeding rate for parrot fish Oplegnathus fasciatus during the low temperature season. To estimate the optimal feeding rate calculated by weight growth rate, one year (mean body weight: 62.7 g) and the two year old parrot fish (mean body weight: 344.7 g) were stocked under low water temperature conditions. The optimal feeding rates in low water temperature condition of $15^{circ}C$ were calculated as 1.61% of body weight (90% of satiation level) for the one year of 62 g, and calculated as 0.28% of body weight (80% of satiation level) for the two years old fish.
