Rainbow trout and juvenile fish cultivation method

Rainbow trout and juvenile fish cultivation method

Juveniles and juveniles of the fish of the year are usually not susceptible to disease when the water temperature is slightly low, and the survival rate is high. With the growth of juveniles and the enhancement of swimming skills, as much water as possible can be given. Juveniles range in size from 1 to 30 grams, and their stocking density is gradually reduced, from 1600/m2 to 500/m2; water injection is gradually increased, and high temperatures require large amounts of water.
With the growth of juveniles, the proportion of animal protein, such as fishmeal, can be gradually reduced, and the proportion of plant proteins can be increased. The daily bait rate (percentage of daily feed on total fish weight) varies with juvenile fish size and water temperature, ranging from approximately 0.9% to 5.4%. As the juvenile size increases, the daily bait rate gradually decreases; with the water temperature changes, the daily bait rate also changes. The unbalanced growth of rainbow trout is a common phenomenon. When the juveniles grow to 2 grams, they need to be screened once and reared according to their size and size.

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