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China's development of deep-sea lobster traps necessity of farming Traditional lobster traps farming the main problems single structure

Data:2013/9/17 2:19:59

    China's development of deep-sea lobster traps necessity of farming Traditional lobster traps farming the main problems single structure, technological backwardness Generally speaking, China's sea lobster traps low level of farming technology, the use of lobster traps most of the inner bay floating row of bamboo, wood structure lobster traps. The lobster type traps are small, simple tectonic, low prices, production, easy maintenance, easy to popularize suitable for small-scale operation. In the past three or four decades, this simple woodenlobster traps indeed China's aquaculture industry has made tremendous contributions. However, with the expanding production scale, the traditional lobster traps have been unable to meet the development needs of aquaculture, its disadvantages are also increasingly prominent. Mainly because such a lobster traps useful life is short, only suitable placed in the inner harbor near the sea shore or sea there is a natural barrier. germplasm missing, varieties degradation At present, China's lobster tr aps seedling breeding objects collected from the Sea of most species of wild seed. these juvenile growth to different size specifications vary, the amount of seed uneven and difficult problems in captivity, hampered China sea lobster traps fish farming industry. Breeding objects over many generations of inbreeding has resulted in a germplasm resource degradation, there individual miniaturization, early sexual maturity, traits such as meat quality deteriorates significantly. 2006, Meng et al point out Rushan Sebastodes fuscescens farming there is a clear germplasm resource degradation. disorderly conduct breeding, management is not good enough lobster traps mainly in semi-enclosed inner bay, the irrational, the set density is too large, often exceeding the capacity of local sea farming. Breeding biology density is too high, poor water, likely to cause local anoxia. Bait and breeding biology excrement difficult to quickly transfer out with the water, accelerating pollution of water bodies, resulting in lobster trapswithin the breeding biology lot suffocation. Employees without professional training, lack of farming technology and management experience. Improper feeding, drug abuse, not only pollute the waters, but also cause a variety of diseases.

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