| Litopenaeus vannamei is native to America's Pacific coast waters,mainly distributed in northern Peru to the gulf coast,the most concentrated distribution In Ecuador along the coast?It is one of the world's three major economic shrimp,and it is one of the most productive shrimp species in the world?It has a fast growth,low nutritional requirements,environment adaptable and disease-resistant ability,etc.The shrimp meat is delicious,good taste,welcome by the market.Since 1993 the Chinese prawn breeding after outbreaks of influenza virus disease,the shrimp industry suffered heavy losses in our country.After the South America white shrimp was introduced and developed rapidly in our country,raise shrimp industry and fill the economic loss caused by disease in China.However,as the extension of breeding time,Litopenaeus vannamei farming in the process of various diseases has become increasingly serious,especially in recent years,the disease problem caused aquaculture practitioners loss greatly.As part of the main area in jingjinji region,for the supply of bohai economic circle finished shrimp occupies an important position.Aquaculture area of 17300 hectares of Beijing,tianjin,41300 hectares,100000 hectares of hebei,Litopenaeus vannamei prawn breeding promote the development of the three area to aquaculture.However,in recent years,Especially in 2015 and 2016,due to disease and fry,most farmers losses,Breeding success rate was less than 10%,farmers have lost confidence in the shrimp.As the industry practitioners for many years,The author has more understanding of the breeding history and status in jingjinji region.This article through the way of market research,analysis of three different cultivation patterns of success,combined with my professional knowledge to a summary,spread of successful experience,this paper discusses the lessons of failure,theory combined with the actual,looking forward to help in aquaculture practitioners and researchers. |
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