Tilapia is characterized by rapid growth, rapid growth, high yield, and low cost. Tilapia breeding is a good way for farmers to get rich. Because tilapia is a tropical fish, its cold resistance is weak. In winter and spring, when the water temperature drops below 10°C, it will die in large numbers. How can tilapia survive the cold season?
The method of combining the outdoor pond with cement and covering it with clinker film insulation solves the low-temperature death problem of tilapia. Method: Use a long rectangular basin with short sides of the east and the west, and a “T†shaped mud pool with the earthen pond as a culture pond. The place where the earthen pond meets the concrete pool meets with a square hole (50 centimeters long and 50 centimeters in width) about 1 meter deep from the ground. The aquaculture pond covers an area of ​​0.5 mu (including 0.3 mu of earthen ponds and 0.2 mu of cement ponds). The depth of water is 1.2 to 1.5 meters. A small house is built on one end of the cement pool. The other end of the pool is covered with bamboo and wood. Take a “person†along the pool edge. The gable scaffolding is about 4 meters away from the top of the pool bottom. The upper cover film is connected with the pool edge to form a sealed heat insulation cover. The membrane is covered with a layer of sparse nets to prevent the wind from being opened. There are several sets around the pool edge. Event curtains. A stove was added to the small room of the breeding pond. When the water temperature dropped to 13°C, the water was boiled with a wok to allow the steam to pass directly into the room. The chimney of the stove surrounds the rear of the culture tank to increase the temperature in the room and control the water temperature. This allows tilapia to survive the cold season safely. Stocking amount: It can be based on the rules of the fish. The specifications are 8 to 15 tails per 0.5 kg, and 160 kg of tilapia can be stocked in a half-acre culture pond with a total of approximately 3,500 tails. The proportion of male and female fish is 3:1.
Fish species should be strengthened, and more feed such as soybean cake, peanut bran and other feeds should be used to make the fish body fat and strengthen the cold resistance. For the first 10 days after raising the culture pond, one kilogram of peanut bran should be put into the soil pool per thousand fish per day (When the water temperature is lower than 20°C, the tilapia feeding knife can be lower, and feeding should be stopped); at the same time, the cement pool It is not appropriate to use a thin film to open the curtains to avoid adapting to environmental changes. When the cement pool is tightly covered and the temperature of the water can be maintained at about 15°C when the weather is sunny and warm, the window can be attached to open to adjust and exchange the air in the pool. In this way, tilapia can enter the earthen pond from the concrete pool when the weather is warm, and when the temperature drops, the tilapia can enter the cement pool again to ensure that it can grow normally. After spring, when the water temperature is stable above 20°C, the fry can be stocked separately.
The method of combining the outdoor pond with cement and covering it with clinker film insulation solves the low-temperature death problem of tilapia. Method: Use a long rectangular basin with short sides of the east and the west, and a “T†shaped mud pool with the earthen pond as a culture pond. The place where the earthen pond meets the concrete pool meets with a square hole (50 centimeters long and 50 centimeters in width) about 1 meter deep from the ground. The aquaculture pond covers an area of ​​0.5 mu (including 0.3 mu of earthen ponds and 0.2 mu of cement ponds). The depth of water is 1.2 to 1.5 meters. A small house is built on one end of the cement pool. The other end of the pool is covered with bamboo and wood. Take a “person†along the pool edge. The gable scaffolding is about 4 meters away from the top of the pool bottom. The upper cover film is connected with the pool edge to form a sealed heat insulation cover. The membrane is covered with a layer of sparse nets to prevent the wind from being opened. There are several sets around the pool edge. Event curtains. A stove was added to the small room of the breeding pond. When the water temperature dropped to 13°C, the water was boiled with a wok to allow the steam to pass directly into the room. The chimney of the stove surrounds the rear of the culture tank to increase the temperature in the room and control the water temperature. This allows tilapia to survive the cold season safely. Stocking amount: It can be based on the rules of the fish. The specifications are 8 to 15 tails per 0.5 kg, and 160 kg of tilapia can be stocked in a half-acre culture pond with a total of approximately 3,500 tails. The proportion of male and female fish is 3:1.
Fish species should be strengthened, and more feed such as soybean cake, peanut bran and other feeds should be used to make the fish body fat and strengthen the cold resistance. For the first 10 days after raising the culture pond, one kilogram of peanut bran should be put into the soil pool per thousand fish per day (When the water temperature is lower than 20°C, the tilapia feeding knife can be lower, and feeding should be stopped); at the same time, the cement pool It is not appropriate to use a thin film to open the curtains to avoid adapting to environmental changes. When the cement pool is tightly covered and the temperature of the water can be maintained at about 15°C when the weather is sunny and warm, the window can be attached to open to adjust and exchange the air in the pool. In this way, tilapia can enter the earthen pond from the concrete pool when the weather is warm, and when the temperature drops, the tilapia can enter the cement pool again to ensure that it can grow normally. After spring, when the water temperature is stable above 20°C, the fry can be stocked separately.
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