Chongming crab raising small, black belly saying, have always been puzzled by the people. For a small, belly black reason, there had been speculation and the environment belongs to the offshore, salty water about. However, the real reason is the traditional breeding technology. Yesterday in an information to promote the meeting, Professor Wang Wu of Cheap D&G Sunglasses Shanghai Ocean University College of life science and said, crab in essence fishpond in Polyculture Cheap Armani Sunglasses is "root causes black small crab" generated.
"crab like living in clear waters, but also need to water plants built for its growth environment." Professor Wang Wu said, in essence fishpond, according to traditional methods of crab, and not leave much grass, in the pond and Michi Ri, high nitrogen content, these are not conducive to grow up, grow fat crab.
however, in recent years, Chongming has introduced the crab grass symbiosis technology, makes the crab's head sharply, a male crab of each of 3 4 two, part of up cheap oakley sunglasses to 5 more than two; the mother crab each also common in 2.5 more than two. Experts said that this Cheap Carera Sunglasses and crab square by biological restoration of water environment, the water quality of pond water from V into II - III water is closely related to. It is understood that the Shanghai people a year consume crabs amounted to 60000 tons, but in the local production of only 4000 tons. The local crab in a previously unpopular causes, in addition to small size, but also with the local crab about regional co.. This, experts say, because in the future China will ban Lake Seine crab, therefore need to development of crab rice symbiotic technology, using a body up to adults "deep rice, crab at depths up to 0.8 meters of the rice field, rice, can achieve the effect of crabs, and this technology is particularly suitable for crab regional limited area use.
it is reported that in the future Chongming appear "water crab body, each crab will also wear a two-dimension code label, consumers can use the mobile phone software scans to obtain the crab breeding and fishing date information.
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