Model of Profit Maximization of the Giant Gourami (Osphronemus goramy) Culture

This research’ objective is to develop a model of profit maximization that can be applied to the giant gourami culture. The development of fish growth model uses polynomial growth function. Profit maximization process uses the first derivative of profit equation to culture time equal to zero. This research develop the equations to estimate the culture time to reach the size target of cultured fish. This research model can be applied in the giant gourami culture. The giant gourami culture can produce the maximum profit at 324 days with profit of IDR. 7.847.700 per culture cycle. To achieve size target of 500 g per fish, it needs 135 days of culture tim