Sexual mature crab species refers to mature or nearly mature crab species. For example, if these crabs are stocked in winter and spring, they cannot grow normally during the growing season. After breeding for a period of time, they will die in large numbers and cause serious losses. Therefore, sexually mature crab species should be identified and not restocked.
How to identify sexually mature crabs? There are mainly "four look":
A look at the abdominal mature female crab, the abdomen has formed a umbilical; male crab transfer device has become a rigid bone of the hose.
Second, to see the chewing claws mature male crab, chewing foot villi not only dense, but also longer, darker color.
Three to see the back of the normal crab species, the color of the back of the chest breast is light yellow; and sexually mature crab species, the head back is dark green or blue. The normal crab species has a relatively flat back and undulations, whereas the sexually mature crab species have uneven backs.
4. Look at the head of the crab in the liver area. If there is only an orange liver, it shows that the gonad is immature; if the male crab has two white lumps (the testis), the female crab has two purple strips, and there are Eggs indicate that the gonads are mature.
How to identify sexually mature crabs? There are mainly "four look":
A look at the abdominal mature female crab, the abdomen has formed a umbilical; male crab transfer device has become a rigid bone of the hose.
Second, to see the chewing claws mature male crab, chewing foot villi not only dense, but also longer, darker color.
Three to see the back of the normal crab species, the color of the back of the chest breast is light yellow; and sexually mature crab species, the head back is dark green or blue. The normal crab species has a relatively flat back and undulations, whereas the sexually mature crab species have uneven backs.
4. Look at the head of the crab in the liver area. If there is only an orange liver, it shows that the gonad is immature; if the male crab has two white lumps (the testis), the female crab has two purple strips, and there are Eggs indicate that the gonads are mature.
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