What kind of koi is easy to breed? the reproduction of koi

Parent fish used for breeding are generally selected for those who are more than 3 years old, more than 60 cm long, pure blood, excellent color quality and strong physique.

Generally speaking, koi males can mature at one age and females can mature at one and a half years old, but at this time, due to genetic instability, the quality rate of offspring is usually relatively low, and it is not easy to obtain good fish, so when conditions permit, it is best to choose more than 3 years old as parent fish.

The intensive cultivation of parent fish should begin in autumn. At this time, the water temperature is about 25 ℃, and the fish have a strong appetite. You should choose a feed containing more than 38% of your body weight, 2-3 times a day, and properly feed green fodder, such as Chinese cabbage, spinach, duckweed, etc., to increase the supply of vitamins.

The proper addition of rice, glutinous rice and honey in the feed can increase the accumulation of fat, which will have special benefits to promote the development of ovaries in spring.

Reproduction can be carried out when the water temperature reaches 16-35 ℃, and the most suitable temperature is 22-30 ℃. There are also those who breed in autumn.

In Guangdong, almost all can reproduce except in the hottest summer.

The breeding season of koi is usually in spring. Koi is a highly adaptable fish that can be cultured in most parts of China.

Brocade carp has a wide range of feeding habits and is an omnivorous fish. its reproduction is similar to that of common carp and can reproduce naturally. However, in order to obtain more high-quality products, often through artificial reproduction.

Reproduction can be carried out when the water temperature is above 16 ℃. In natural reproduction, fish nests should be prepared, usually sterilized with potassium permanganate solution of aquatic plants, pine leaves, brown slices, nylon rope (silk), etc., mainly in order to evenly attach eggs. Tie the above objects into small bundles and hang them on the surface of the pool.

The ratio of parent fish is generally one female with two males, if there are many parent fish used for breeding, 1: 1 is also possible. Koi are most likely to lay eggs in the morning in thunderstorm. With artificial flushing stimulation, the effect will be better.