1. Reproductive age and season: Crucian carp is a kind of fish with strong reproductive ability, but they need to reach a certain age before they can reproduce. Crucian carp is a relatively precocious fish, in 1-2 years of age when it has the ability to reproduce. After that, they will breed in the appropriate breeding season, generally from March to April of each year.
2. Ovulation: After the breeding season, the female crucian carp will choose to lay eggs in places with plenty of water and grass or places with stones. After spawning, the reproductive task of the female fish can be said to be basically completed, because crucian carp adopts the reproductive mode of in vitro fertilization.
3. Fertilization: After the female fish lays eggs, the male fish is fertilized. During the breeding season, if male fish find eggs around them when they swim, they will discharge sperm on them, and sperm and eggs will combine to form fertilized eggs.
4. Hatching: The last step is the hatching process of the fertilized egg. Wild crucian carp living in rivers and lakes can not guarantee the hatching environment, so many fertilized eggs can not be hatched. If artificial incubation is used, the hatching rate can be higher, and many breeders will choose to let crucian carp breed artificially.
As mentioned above, the reproductive capacity of the crucian carp is relatively strong. The number of eggs that the female crucian carp can produce each time is relatively large, and they can breed more than once a year. Generally speaking, crucian carp can reproduce at least twice a year. Female crucian carp will reproduce again after enough rest after a spawning. The same is true of farmed crucian carp, which can ensure that the surrounding environment is suitable after spawning, so that they can rest for a period of time and reproduce again.
