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How to identify the quality of fish species in aquaculture
Strong fish species is not only an important basis for increasing adult fish production, but also one of the main conditions to improve the survival rate of fish species. The main standards for identifying the quality of fish species are 5.
2019-02-26 -
Why can't the body color of yellow croaker turn yellow in running water culture?
Why can't the body color of yellow croaker turn yellow in running water culture?
2018-07-11 -
How to identify the quality of fish species
First, to see whether the specifications are uniform of the same kind of fish, those who come out of the pond with uniform specifications are generally more physically fit. Second, to see if the fish is glossy and strong, there is a layer of mucus on the body surface of the fish to protect the scales and skin from germs, so the body surface shows a certain luster. On the other hand, the body surface of sick and injured fish is lack of mucus and no luster, or some diseased fish have too much mucus and lose their luster. Third, the body color of the fish species reflects its advantages and disadvantages through the body color of the fish species. The body surfaces of high-quality fish species are respectively:
2019-01-15 -
Changes of characteristics of cultured Pelteobagrus fulvidraco and its relationship with feed
Changes of characteristics of cultured Pelteobagrus fulvidraco and its relationship with feed
2018-07-11 -
The elegant Little Princess "Fairy Fish" Culture Collection of Tropical Fish
Fairy fish, also known as swallow fish, angel, small fairy fish, small fin sailing fish, etc., Riceae fish, native to South America Guiana, Brazil. The fairy fish grows 12-15 centimeters.
2019-02-28 -
What kind of fish is mixed with colorful fairy fish?
What kind of fish is mixed with colorful fairy fish?
2018-07-06 -
How to distinguish high-quality fish species
A look at the specifications of fish species the specifications of the same kind of fish in the same pond should be neat and uniform, with little difference in body length and weight. On the contrary, the overall survival rate of poor fish species with large individual gap and uneven quality is often very low due to predation, mixed germplasm, poor feeding and other reasons. Second, look at the body color of fish species. The body color of fish species is bright and full of luster. Different species and different feeding methods have different body colors. Generally speaking, the back of high quality silver carp should be silver gray, the side of body and abdomen should be silver white, and the body color of high quality grass carp should be light.
2019-01-16 -
How much is the light fish?
How much is the light fish?
2019-02-18 -
Fish body ulcer how to prevent and cure fish lice disease in winter
Fish body ulcer how to prevent and cure fish lice disease in winter
2018-07-11 -
To identify fish species by observing their faces and colors.
A look at the specifications of fish species the specifications of the same kind of fish in the same pond should be neat and uniform, with little difference in body length and weight. On the contrary, the overall survival rate of poor fish species with large individual gap and uneven quality is often very low due to predation, mixed germplasm, poor feeding and other reasons. Second, look at the body color of fish species. The body color of fish species is bright and full of luster. Generally speaking, the back of high-quality silver carp should be silver-gray, the side of the body and abdomen should be silver-white, and the body color of high-quality grass carp should be light golden yellow and gray-black net.
2019-01-16 -
The Marine Elf Nemo Family-- A complete Collection of the Culture of "Clownfish"
Clown fish is a common name for the fishes of the subfamily Sparidae, which is a kind of tropical saltwater fish. It is known that there are 28 species, one of which is from Premnas.
2019-02-27 -
How do peacock fish divide male and female
How do peacock fish divide male and female
2018-09-08 -
How much is a map fish?
How much is a map fish?
2019-02-18 -
Skillful identification of high quality fish species
Look at the specifications of the fish species the specifications of the same kind of fish in the same pond should be neat and uniform, with little difference in body length and weight. On the contrary, the poor fish species with large individual gap and uneven quality often result in low overall survival rate due to predation, mixed germplasm, poor management and other reasons. Look at the body color of the fish. The body color of the fish is bright and shiny. Different species and different culture methods have different body colors. Generally speaking, the back of high-quality silver carp species should be silver-gray, the side of the body and abdomen should be silver-white. Excellent
2019-01-16 -
How do map fish divide male and female?
How do map fish divide male and female?
2018-09-07 -
Is the lantern fish tropical fish?
Is the lantern fish tropical fish?
2018-07-06 -
How to identify high quality fish species
"half the profit is good for planting, and half the grain is good for seedlings." Strong and good quality fish species is not only an important factor to improve the survival rate of fish species, but also an important basis and guarantee to increase fish production and economic benefits. High-quality fish species should have: appropriate specifications, neat, robust and harmless, lively action, strong food grabbing power, specifically to identify high-quality fish species can be summarized as "three look and one sampling". A look: the specifications of fish species in the same pond and the same fish pond should be neat and uniform, with little difference in body length and weight, on the contrary, there is a large individual gap.
2019-01-16 -
How to raise map fish
How to raise map fish
2018-09-08 -
How to prevent and cure the "water poisoning" of fish
The water body is the air for fish to live. In recent years, due to water pollution (such as dissolved oxygen exceeding the standard. The metal exceeds the standard. The water body is lack of oxygen, etc.), which makes the fish suffer from water poisoning, resulting in a large number of deaths. The following methods can be used for the prevention and treatment of water poisoning in fish bodies. Excessive dissolved oxygen in water will cause eutrophication of water body and cause many diseases such as bubble disease in fish. 1. Due to the application of too much unfermented fertilizer in the harmful and symptomatic water body, fine methane and sulfidation are decomposed at the bottom of the pond.
2019-01-16 -
Culture and reproduction of map fish
Map fish, also known as black pig fish, starfish, tail fish, pig larvae, belongs to the family Sparidae, beautiful fish genus, the origin of South America's Amazon basin. Not only its lovely appearance, its meat taste is also very delicious (comparable to grouper), both ornamental value and edible value, but also strong adaptability to water quality, short culture cycle, feed is easy to solve, high economic value, the market is very popular. 1. The morphological characteristics of map fish the map fish belongs to a larger species of ornamental fish, and its body length can be exceeded under artificial breeding conditions.
2019-01-16