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. The crab shell need certain conditions, artificial breeding should pay attention to the following questions: First, adjust the water level of crab shell, the pool water should not be too deep, artificial breeding of crabs should be set to shell (that is, shallow shallows), easy to climb the crab To the shell with its own shell. 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 the killing of crab shells during the mutual killing of clam shell during the feeding of animal puff feed, so that "soft shell crab" reduction or reduction of the same kind of slaughter. Third, adjust the temperature during the clam shell When engaged in artificial breeding of crabs, usually less water, so the temperature difference is large, especially in the high temperature season temperature difference, to do a good job of cooling work, so that the crabs can successfully peck shell. Fourth, the cause of the death of the crab shell The crab shell is the key to its growth, the smooth survival of the oyster shell, oyster shells will not die. The causes of death of crab shells are as follows: 1. Constitution, the clam shells are dead and the crabs are hard shelled, and the system is robust. Injured and sick, often only half died. 2. Death caused by unsuitable water quality 3. Lack of trace elements in feed can also cause death of clam shells. Usually, crabs need to be supplemented with a large amount of calcium, iron and other elements. For example, long-term lack of certain elements in feed, crabs are not only not long shells , and the shell is difficult. Therefore, when feeding crabs, add some foods rich in calcium, iron and other elements in the feed to facilitate crab shells. 4. Enemy and similar invasions cause the crabs to have no resistance to enemy enemies and similar abilities when they die. Clearing predators and increasing feeding of animal feeds are effective measures to prevent predators and similar attacks.
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