More than a week, I did not quiet. I always think about it. During thinking about it, I try to look for inspirations to solve that problem. I unsatesfied if I have not fulfil his wish. Because, I seriously want to helf him.
When I went to around my farm, sudden I saw some fibreglass tank. They have length 1 m, wide 1 m, and 0,4 cm. At the same time, I saw aquarium glass in a rack. A rack has five levels. I smiled, and almost shout, I have find what I look for. I can… yes I can, I said.
Two days later, I made a rack by bamboo. The rack has 5 levels, by 6 m in lengths, 1 m in wide, and 2,5 m in high (dictance every level 0,6 m). Five fibreglass tank placed in every levels. So, in a rack can be used for 25 fibreglass tank.
Two stem of small paralon pipe (3/4 inches), I set as inlet, on of side closed. For regulating discharges, I set a water tap. I also set two paralon pipe 3 inches as outlet. There, I set a water tap for closing when watered, and for out when outed.
Fibreglass tank watered 1 cm, by closing outlet, and opening inlet. Youngfrogs stocked there by density 800 tadpoles for a fibreglass tank. In order rest foods, secretion, other dirty out of fibreglass tank, during cultivating water irrigate continuously.
Every day fed by 3 percent floating pelet (pelet is artificial feed in Indonesia). Pelet is given for three time, are 08.00 o,clock, 11.00 o’clock, 14.00 o’clock, and 17.00 o’clock, or depend of weather. If clouded, dosis of feed lossed up to 2 percents.
Before feeding, rest feeds, secretion, and other dirty out of fibreglass tank, by opening outlet. After drying, water is irrigated to every fibreglass tank, by opening inlet. In order clearer, discharge is increased. During clearing, youngfrogs don not moved. After 10 days, youngfrogs sorted, and density reregulated (or changed).
That is density of youngfrog based weight in every fibreglass, 15 – 25 gram 600 youngfrogs; 40 – 50 gram 440 youngfrogs; 65 – 75 gram 280 youngfrogs, 100 – 110 gram 200 youngfrogs; 125 – 135 gram 160 youngfrogs; 140 – 150 gram 140 youngfrogs; 165 – 175 gram 120 youngfrogs; 200 – 210 gram 105 youngfrogs; 220 – 230 gram 90 youngfrogs.
Next activities are like above, from feeding, clearing, sorting, density regulating, and the other actities. In the end of growing bullfrogs have reach consumtion, or 250 gram. By the system, I can produce bullfrog consumtions for 100 kg/m2.
Daftar pustaka :