How long can crayfish breed?

Freshwater lobsters usually mate and hold eggs from the end of 10 to March of the following year. Mating time is different in different waters. Eggs that mate too early are often immature, while eggs that mate too late are over-mature and aging. The suitable water temperature for mating is 22~25℃, and it is best not to fish in mating season so that it can hatch and reproduce with eggs.

Freshwater lobsters mate in spring, summer and autumn and can lay eggs 3-4 times a year. Generally, parent shrimps with a body length of 7- 10 cm and a body weight of 15-30 g have 220-270 eggs, but the number of eggs varies greatly with individual size.

Under normal circumstances, it takes 1~2 months from mating to spawning (that is, embryo development) for young shrimp, which requires a lot of physical strength, so it is necessary to strengthen the nutrition and cultivation of young shrimp. The suitable water temperature is 22~27℃ and the incubation time is 6~ 10 week. Before shrimp fry breeding, it is necessary to clean and disinfect the pond, filter the water, and then apply organic fertilizer to cultivate natural bait organisms for shrimp fry to eat.

Generally, the stocking density of shrimp fry is 1.5 ~ 0.2 million/200,000. If the shrimp fry are cultured by "soybean milk" method, the stocking density can reach 1.6 ~ 1.8 million.