The use of fly maggots to raise fish pond horn fish technology
2019-05-13 14:04:10
Turtle hornfish, named for its beard owl, is classified as a beard owl in terms of taxonomy. It is a high-quality freshwater fish and has a growing market demand. In recent years, its culture has been greatly promoted in Liuzhou. However, due to the fact that the fish is a kind of omnivorous fish mainly based on animal diets, it has a high demand for bait and has always been high bait costs. In order to address the source of bait and reduce costs, a high-yielding trial was conducted in 2001 for the fly maggot breeding pond pond fish. The experimental results are summarized as follows:
First, the fish pond conditions Fish ponds are rectangular concrete, each with an area of ​​40 square meters, depth of 60 to 90 centimeters, the fish pond can be drained, the water source for the well water. The fish ponds were sprayed with 250 g/m3 quick lime for disinfection.
Second, stocking technology
On April 25, the first batch of fry was stocked, and 25,000 fry with a body length of 2.2 cm was stocked. The stocking density was 625/m2. The stocking was conducted on May 20; the second fry was stocked on August 1 and stocked 2.5. Twenty-nine centimeters long fry were stocked at a density of 575/m2, and they were pooled on August 30th. Farming area is 80 square meters.
Third, the feeding process of breeding technology is to use the fly maggots that are self-produced and produced. Each morning and evening, the amount of bait is 5% to 10% of the body weight of the fish. It is advisable to eat within one hour. At the same time, in order to meet the growth needs of the fish pond corner fish, a small amount of feeding plant food and artificial feed.
Fourth, daily management Adhere to the daily patrol pool, always pay attention to changes in the pool water, timely replacement of new water, keep the water cool, dissolved oxygen is sufficient. Normally, water is injected once a week and water is changed once a month. In the hot season of summer, it is necessary to inject water 10 to 30 centimeters per day and change the water in 2 to 3 days.
Maintaining good water quality is the key to reducing the incidence of disease. Every 15 to 20 days, 0.2 g/m3 of Yang Bang is spilled once to disinfect the water body. Each day before feeding the fly larvae, they were sterilized with saline and fed with 250 grams of oxytetracycline per 100 kg of bait every 10 days.
Fifth, the harvest
From July 25 to November 20, a total of 2,688 kilograms of fish were harvested in four batches with an output value of 37,632 yuan. The net profit was 18,568 yuan after deducting the cost of fish and bait production.
First, the fish pond conditions Fish ponds are rectangular concrete, each with an area of ​​40 square meters, depth of 60 to 90 centimeters, the fish pond can be drained, the water source for the well water. The fish ponds were sprayed with 250 g/m3 quick lime for disinfection.
Second, stocking technology
On April 25, the first batch of fry was stocked, and 25,000 fry with a body length of 2.2 cm was stocked. The stocking density was 625/m2. The stocking was conducted on May 20; the second fry was stocked on August 1 and stocked 2.5. Twenty-nine centimeters long fry were stocked at a density of 575/m2, and they were pooled on August 30th. Farming area is 80 square meters.
Third, the feeding process of breeding technology is to use the fly maggots that are self-produced and produced. Each morning and evening, the amount of bait is 5% to 10% of the body weight of the fish. It is advisable to eat within one hour. At the same time, in order to meet the growth needs of the fish pond corner fish, a small amount of feeding plant food and artificial feed.
Fourth, daily management Adhere to the daily patrol pool, always pay attention to changes in the pool water, timely replacement of new water, keep the water cool, dissolved oxygen is sufficient. Normally, water is injected once a week and water is changed once a month. In the hot season of summer, it is necessary to inject water 10 to 30 centimeters per day and change the water in 2 to 3 days.
Maintaining good water quality is the key to reducing the incidence of disease. Every 15 to 20 days, 0.2 g/m3 of Yang Bang is spilled once to disinfect the water body. Each day before feeding the fly larvae, they were sterilized with saline and fed with 250 grams of oxytetracycline per 100 kg of bait every 10 days.
Fifth, the harvest
From July 25 to November 20, a total of 2,688 kilograms of fish were harvested in four batches with an output value of 37,632 yuan. The net profit was 18,568 yuan after deducting the cost of fish and bait production.
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