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. In this method, a regulating heater is installed in the nursery pond, and the temperature of the pond water is slightly higher than the ordinary water temperature of 1° C. to 1.5° C. by heating, so that the growth rate of the fry is accelerated, and the adaptability of the fry water to the air temperature is enhanced. Mortality can be reduced by 2% to 3%.
Hormone Fish Method The new method of hormone fish farming in Canada is to add growth hormone hormones extracted from chicks and calves to the feed of salmon fry, so that the growth of fish can be accelerated, and the daily gain index can reach 2.38. %.
Salt water fish farming Singaporean scientists use brackish water with a salinity of 3% to feed squid larvae, which can significantly increase fish survival, fertility and productivity.
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 been completely degraded.
Fat-feeding method The Western British Fisheries Experimental Station uses fat-feeding method to raise fish. It uses semi-refined feed to add 4% to 8% of fat (either animal or vegetable fat) to feed fry, which greatly reduces mortality.
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. In this method, a regulating heater is installed in the nursery pond, and the temperature of the pond water is slightly higher than the ordinary water temperature of 1° C. to 1.5° C. by heating, so that the growth rate of the fry is accelerated, and the adaptability of the fry water to the air temperature is enhanced. Mortality can be reduced by 2% to 3%.
Hormone Fish Method The new method of hormone fish farming in Canada is to add growth hormone hormones extracted from chicks and calves to the feed of salmon fry, so that the growth of fish can be accelerated, and the daily gain index can reach 2.38. %.
Salt water fish farming Singaporean scientists use brackish water with a salinity of 3% to feed squid larvae, which can significantly increase fish survival, fertility and productivity.
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 been completely degraded.
Fat-feeding method The Western British Fisheries Experimental Station uses fat-feeding method to raise fish. It uses semi-refined feed to add 4% to 8% of fat (either animal or vegetable fat) to feed fry, which greatly reduces mortality.