Recently, hundreds of goldfish of different forms, such as ink fold lion head, unicorn short-tailed lion head, five-flower orchid shou, screen fin dragon eye, five-flowered liujin, etc., have appeared in Fuzhou, which is breathtaking.
Goldfish originated in China, alias golden crucian carp, for the order Cyprinid, carp family, crucian carp genus, carp series of species, similar to carp but it has no whiskers, is an ornamental fish evolved from crucian carp, but also the earliest ornamental fish species in the history of ornamental fish in the world. Goldfish is one of the world's three most famous ornamental fish, which has a history of more than 1,700 years. In the twelfth century, the genetic research of goldfish homeization has begun, after a long period of breeding, the variety has been continuously optimized, and now the goldfish in various countries in the world are directly or indirectly introduced by China.
There are many kinds of goldfish colors, including red, orange, purple, blue, ink, silver and white, and five flowers. The varieties are divided into four major strains: wen species, grass species, dragon species and egg species. The figure is strange, the shape is beautiful, the head is large, the colors are brilliant, and it is generally golden yellow. There are many varieties, with large differences in morphology, including flat heads, lion heads, goose heads, pompom heads, etc., and there are many tumors on the head. The eyes bulge and the eyeballs swell. There are many kinds of scales, including transparent scales and bead scales. The fins are large and scattered. There are many kinds of body colors, including gray, red, black, white, blue, miscellaneous spots, five flowers, etc., and the body shape is long and short.
The color of a goldfish's body is related to the genes in its body. Genes determine the type and number of pigment cells in a goldfish's body. Each goldfish has three pigment cell components in its body, which manifest as black pigment cells, orange-yellow pigment cells, and light blue reflective tissue. Formed as a result of the recombination, redistribution, change in intensity, density, or disappearance of one, two, or three of these components. For example, the red goldfish lacks melanocytes, the black goldfish melanocytes are very dense, the white goldfish melanocytes and yellow pigment cells all disappear, the purple goldfish yellow pigment cells are dense and the melanocytes are sparse, and the blue goldfish lacks yellow pigment cells.
Goldfish are selected from wild crucian carp, all goldfish, compared with wild crucian carp, there are only a few dozen genetic mutations that have been selected, and the combination of different mutations has created colorful and different forms of goldfish.
Goldfish have the following broad categories of bright, variable body colors:
Blue -white-red-black-blue-purple-red-white-red-black-white-blue-white-purple-white-purple-white-purple-blue-red-black-red-red-white-red-blue-purple-white-red-blue-white-purple-white, the five flowers are arranged in turn.
During the ontology of goldfish, there has been a phenomenon of fading. Black goldfish such as ink dragon eyes, ink bubbles, etc., have the phenomenon of changing with age. Some blackfish turn orange-red or red-black within 2-3 years, some fade to black and white, and others remain black for longer.
The color of fish is not fixed, and there are a variety of goldfish variations today, such as black, flower color, gold, white, silver white, and three-tailed, dragon's eye, or no dorsal fin. More than 125 goldfish species have been bred through continuous optimization.
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