Musical Fish Culture Many fish farms in Japan let fish listen to music to promote the growth of fish. After the hatching of the eggs, each time a juvenile fish feed is fed, a music is played so that the juveniles form a habit of eating music and eating at the eating point. After the seedlings were placed in a large area of ​​fish ponds for feeding, they were each fed and continued to play the music.
Changing the water temperature method The experimental farms of the Moscow Agricultural University change the temperature and temperature of the fish culture, which can greatly accelerate the growth rate of the fry without changing the feed. The specific method is to install a regulating heater in the nursery pond, and by heating, the pool water temperature is 2-5°C higher than the normal water temperature, so that the growth speed of the fry is accelerated, and the adaptability of the fry water to the temperature is enhanced, so that the mortality rate can be increased. Decrease by 2%-3%.
Choosing a Fish-Fish Method A U.S.-Aquaculture company uses selective breeding techniques and chooses to breed for 8 years to produce a thornless meat fish. This stingless meat fish has only one spine and the fishbone has completely degenerated.
Fat-feeding method The Western British Fisheries Experimental Station adopts the fat-feeding method to raise fish, that is, adding 4%-8% fat (animal or vegetable fat) to feed fry with semi-refined feed, which greatly reduces the mortality rate.
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Changing the water temperature method The experimental farms of the Moscow Agricultural University change the temperature and temperature of the fish culture, which can greatly accelerate the growth rate of the fry without changing the feed. The specific method is to install a regulating heater in the nursery pond, and by heating, the pool water temperature is 2-5°C higher than the normal water temperature, so that the growth speed of the fry is accelerated, and the adaptability of the fry water to the temperature is enhanced, so that the mortality rate can be increased. Decrease by 2%-3%.
Choosing a Fish-Fish Method A U.S.-Aquaculture company uses selective breeding techniques and chooses to breed for 8 years to produce a thornless meat fish. This stingless meat fish has only one spine and the fishbone has completely degenerated.
Fat-feeding method The Western British Fisheries Experimental Station adopts the fat-feeding method to raise fish, that is, adding 4%-8% fat (animal or vegetable fat) to feed fry with semi-refined feed, which greatly reduces the mortality rate.
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