Seed culture method for cherax quadricarinatus

Abstract

The invention discloses a seed culture method for cherax quadricarinatus. The method comprises the following steps of 1 culture pond preparation, 2 seed shrimp selection, 3 seed shrimp pond entry, 4 parent shrimp culture, 5 seed shrimp copulation, 6 incubation management and 7 shrimp seed marking. According to the seed culture method, in the cultivation process, seed shrimp gonad development, illumination period stimulation, hormone stimulation and effective temperature accumulation in the shrimp seed growth process are improved, within a complete seed culture period, the shrimp seed yield is300% of the yield in the prior art for the same amount of parent shrimp, the cherax quadricarinatus egg mass rate and the shrimp seed survival rate are effectively increased, the yield of cherax quadricarinatus is greatly increased, and therefore the cherax quadricarinatus seed culture cost is lowered.

Description

technical field [0001] The invention relates to the field of aquaculture, and more particularly relates to a method for raising seedlings of red-clawed crayfish. Background technique [0002] Red claw crayfish, also known as "Australian freshwater lobster", is native to Australia and looks like a lobster in the sea. It is one of the most valuable freshwater economic shrimp species in the world. The body color of this shrimp is brown-green, and there is a membranous bright red band on the top of the outer claw, which is beautiful and beautiful, so it is also known as red claw crayfish. The red claw crayfish is dioecious. The whole body consists of the cephalothorax and abdomen covered with chitin carapace. There are 20 segments in the whole body and 13 segments in the cephalothorax. The individual of red crayfish is generally 50-100 grams, and the largest individual is 500-600 grams. It is a kind of freshwater shrimp with strong adaptability. Due to the high rate of meat yi...

AI Technical Summary

Problems solved by technology

[0003] Due to its high nutritional value, more and more people like to eat it, and the amount of natural growth no longer meets people's needs. In order to increase the output of red crayfish, more and more areas have carried out artificial breeding. However, during the cultivation process, most of them pay attention to the consumption of red crayfish, ignoring the effects of gonad development, photoperiod stimulation, hormone stimulation and effective accumulated temperature on the growth and reproduction of red crayfish, and cannot effectively improve the oviposition rate and shrimp quality. The survival rate of seedlings has affected the yield of red claw crayfish