Precautions during Crab Shelling
Crab shell is an important stage in its life activities. If the shell does not go well, it will not only affect the growth of the larval stage, but also cause death. Crab shells need certain conditions, and the following issues should be noted when artificial breeding:
First, adjust the water level
When the crabs are clam shelled, the pool water should not be too deep. When the artificial crabs are cultured, the clam shells (shallow shallows) should be set up so that the crabs can climb into the clam shells with their own clam shells.
Crabs like to climb to a quiet and secluded place when they are shelled. When artificially breeding crabs, they should be planted in pond water to plant submerged plants of floating plant leather, so as to facilitate smooth crab shelling.
When the crabs are clam shelled, they must prevent the pools from drying up. When the crabs are clam shelled with water, they cannot leave the shells.
Second, to prevent mutual killing during crab shelling
During the oyster shell, feeding of animal palatable feed was increased to reduce or reduce the killing of “soft shell crabâ€.
Third, adjust the temperature during the clam shell
When artificial crabs are cultivated, they usually have less water, so the temperature difference is large, especially the temperature difference during the high temperature season. It is necessary to do a good job of cooling, so that crabs can be shelled successfully.
Fourth, the cause of death of crab shell
The crab shell is the key to its growth. The survival of the shell is smooth and the shell is not killed. The cause of death of crab shells is:
1. Constitution, death without clam shell
The crab is hard-shelled and has a robust system. Injured and sick, often only half died.
2. Death due to unsuitable water quality
3. The lack of trace elements in the feed can also cause the shell to die
Usually need to add a lot of calcium, iron and other elements to the crab, such as long-term lack of certain elements in the feed, crab not only shell is not hard, and difficult to clam shell. Therefore, when feeding crabs, add some foods rich in calcium, iron and other elements in the feed to facilitate crab shells.
4. Death caused by enemy attacks and similar attacks
When the crabs are clam shelled, they have no ability to resist predators and similar abilities. Clearing predators and increasing the feeding of animal feed is an effective measure to prevent predators and similar attacks.
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