Grass carp is a common fish, they can be raised artificially. The growth rate of grass carp under artificial breeding conditions is relatively fast. In their whole growth process, the growth rate of body length of grass carp is the fastest in the first and second instar; The growth rate of body weight of grass carp was the fastest in the second and third instar. Specifically, the body length of grass carp cultured for about one year may be more than 30 centimeters, while the weight is more than one kilogram; The body length of grass carp cultured for about 2 years is about 60 centimeters, and the weight can reach 67 kilograms; The weight of grass carp cultured for about three years can reach more than 10 kilograms, at this time, it can be said that grass carp has grown relatively large. After that, although it will grow, the growth rate will be slower.
However, under different circumstances, the growth rate of grass carp is also different. Therefore, how long grass carp can grow up is not certain. For example, the living environment and food supply are different, and the growth rate of grass carp is also different, which leads to the growth rate of grass carp living in the wild will be slower than that of artificially raised grass carp, because sometimes the environment is not suitable, or the food is not enough.
Grass carp can reproduce only after reaching certain conditions. Age condition is an important condition. Grass carp can reproduce and spawn only after sexual maturity. In terms of age, grass carp generally enter the state of sexual maturity at the age of 3 or 4. From the weight point of view, it is when their weight is about 5 kilograms. But specifically speaking, it is not very certain, there are also relatively early grass carp, in more than two years old when sexual maturity, can carry out the process of reproduction.
