Fry Development In the previous article we talked about fish farming laying of the first through 2 -3 months. This article will focus on the development of 3 - 6 months of age.
When goldfish reach the age of 3 months, about 2 to 3 culls have taken place. The initial culling is carried out to remove the fish that have obvious deformities, or do not meet the general requirements race. The slaughter of these steps can be given to people who want to fish, pet, children in the neighborhood, or humanely destroyed. I prefer to give fish, and there appears to be a market of people who would like fish. This process usually takes a little longer, but makes people happy and save fish.
By the age of three months, body and style finnage begin to take their final form. Color will begin to take shape, and although the metal fish can take up to a year for staining to occur. Characteristics of the race (as head of growth, eyes, etc.) will begin to develop.
A fourth slaughter must be carried out at about 4 - 5 months to select the fish to be raised by the deadline. On a clutch of several hundred to several thousand fish, no more than 5 - 10 fish should be maintained for final grow-out. There are several reasons for this low percentage of fish that are selected for grow-out. The main reason is space, it is simply not enough space to raise all the fish are spawned. If not given enough space, the fish will not grow to optimal size. The second reason is the food: raising a large number of fish requires a lot of food. The third reason is water quality, proper maintenance of water is difficult face of big fish. The last reason is genetic: Most fish will have some sort of defect or undesirable feature to display.
By the age of six months, fish are much race variety, but not all the characteristics of the variety will be fully developed yet. Finally, the fish look like their parents.
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