The herring is a relatively common freshwater fish. There are both wild species and artificially raised species. Black carp can reproduce themselves. For example, the breeding time of wild herring is generally concentrated in May-July every year. In this stage, the temperature is more appropriate. At this time, the female black carp that has reached the stage of sexual maturity will spawn in the river and carry out the process of reproduction, and sometimes we can observe the situation of male and female fish chasing and fighting with each other. In the Yangtze River and Pearl River, the number of black carp spawning is very large. Captive-reared herrings can sometimes reproduce naturally.
However, it should be noted that the hatching rate of herring eggs is not particularly high if the herrings reproduce themselves. Many fish eggs cannot be hatched. Therefore, generally speaking, artificial breeding of black carp is artificial incubation, which can ensure hatching rate and yield.
It has been introduced above that the herring can reproduce by itself. Wild herrings generally breed on their own, and their breeding period is from May to July of each year, during which time the temperature is most suitable. In captivity, black carp can also reproduce themselves, but considering that they can not guarantee the hatching rate if they reproduce themselves, breeders generally choose to reproduce black carp and hatch black carp eggs in captivity. Under artificial conditions, it is easier to ensure a suitable environment, especially temperature, so that the success rate of reproduction is high, the yield can be better guaranteed, and higher economic benefits can be obtained.
