Organic tilapia growing feasible in Region 2
TUGUEGARAO CITY, Cagayan: Without the need for expensive commercial feeds and other inputs, fishermen in Cagayan Valley (Region 2) said there is nothing more to worry about chemical
The Bureau of Fisheries and Aquatic Resources ( BFAR) in Region 2 has shown viability of Imelda Bangloy in Gamu town in Isabela province.
Rhodamel Soriano, Organic Tilapia project leader, said a total of 348 kilos was harvested after six months in the demonstration farm, with harvests averaging 200 grams.
Soriano added that farmers could follow the protocol on organic tilapia farming in this demo farm where chemical-free pond preparation was made, followed by fertilization.
“Fertilizer used was vermicast applied at rate of 1,000 to 2,000 kilograms per hectare per month,” she said.
Bangloy’s pond measures 1,500 square meters and was stocked with 4,500 tilapia at - lings per square meter.
Soriano said this was lower compared to the five pieces - ommended for semi-intensive culture of tilapia .
The lower stocking density, according to her, aims to maximize utilization of natural food, which is made available with application of organic fertilizer reapplied every month using the same rate.
“Feeding rate was computed at 10 percent during the first month and gradually reduced to 2 percent toward the end of the six-month culture period,” Soriano said.
She added that instead of commercial fish feeds, the demonstration farm utilized a specially formulated organic meal, 30 percent copra meal, 20 percent D1 darak (bran) and
Other feeds utilized were duckweeds and water spinach (kangkong).
“Organic farming promotes farm- made feeds using available local raw materials,” Soriano said, adding that yield might be lower in organic tilapia compared to the usual semi- intensive culture ( with commercial feeds) but capitalization was also much lower.
She said sale from this project was P38,300 with net income of P13,047 and, according to her, income could be much higher as the produce could be priced higher since it was organic.
According to BFAR, the project is pursuant to Republic Act 10068 or “An Act Providing for the Development and Promotion of Organic Agriculture in the Philippines.”