The early days of the crab breeds in us, if do not like to live in seclusion to choose burrow live in caves instead in aquatic because of environmental problem crab, such crab is lazy crab. Lazy crab it is opposite at living in seclusion crab grows more slow, and vitality is more flimsy, a bit carelessly easy and gone.
Everybody knows, died crab is cannot of enough edible, this is the nutrition that because abound,goes up because of died crab body, say degenerative rate is very rapid so, and because water is critical,not be absolutely and clean surely. Also be to having various bacteria inside. The body that can rely on a crab after crab is dead so breeds quickly.
There is a kind of bacterium to be called inside its body be out of shape bacillus, this kind of bacterium can take off the protein inside human body carboxyl more, generation histamine. And histamine has harm to the body, when people used the histamine of certain amount, can happen disgusting, diarrhoea, vomitive phenomenon. Make person dehydrate convulsive, can cause person death badly even. Say how to prevent to appear so dead crab is to breed door one of obligatory course.
Be about to assure the qualification of the quantity containing oxygen in water system above all when we breed a crab, this eligible line holds the dissolve oxygen quantity in pillow water in the arms to be in namely 5mg above, when the oxygen of water area dissolve that breeds a crab measures district 3mg the crab is met gradually to disembark take a breath, if long dissolve oxygen measures inadequacy to be able to bring about a crab to be absent,enter the water forage, stay in the burrow of the bank to rest all the time however. Affected the growth of the crab badly. The dissolve oxygen in saying to must assure water so measures qualification, we can choose the method that solves this problem to breed aquatic to be able to increase dissolve oxygen amount effectively in water.
The water level change that bred water area namely at 2 o'clock is serious, be in the place with water level serious change, the crab can abandon reclusive lifestyle, had chosen to go up however the life in the live in caves in burrow. Serious problem is normally the crab exuviate of live in caves can be affected, than living in seclusion crab more difficult, say to reclusive crab also can be compared on build so smaller, affect our economic benefits directly.
Aquatic is lacked in the water that bred a crab namely at 3 o'clock, lack the attachment of the crab, we know the crab is having climb the habit that adds an object to live in seclusion, say to climb so adding an object also is a part that the crab lives in seclusion, if do not choose to live in seclusion to arrive with respect to can serious effect,the crab also was mentioned before the crop of the crab. If see,say us so partial crab toes disembark amuse oneself makes the opportunity of its live in caves becomes much, this also can bring about those who produce lazy crab to greaten. We are solved involving the method that adds an object is reasonable in water plant water and grass, offer for the crab live in seclusion live environment.
4 o'clock is us those who put in bait makings is inhomogenous, we put in inhomogenous bait makings to be able to be brought about partial crab did not have bait stuff, say these crabs that were not late meet in the course of time so burrow live in caves, became lazy crab, do not like to come out to forage, affected the growth of the crab badly.
It is water quality problem last bits, when if we are in,breeding a crab, early days used too much inorganic fertilizer, make nitrite content increases the ammoniac nitrogen in water. With respect to the appetite of crab of can serious effect, the influence absorbs food to bring about the generation of lazy crab.
