On December 27th, the 2020 Annual Meeting of the Penaeus vannamei Association and the Forum on sustainable development of the Penaeus vannamei industry were held in Rudong as scheduled
Text/Figure Silver Phytocin at the forefront of aquatic products
In 2020, the culling rate of shrimp in rudong county boiler early fry will reach 60%, the culling rate of greenhouse direct temperature seedlings will reach 70%, and the emergence rate of high-yield sheds will exceed the same period last year and exceed history! In the second half of the autumn, the shrimp growing rate of the second stubble greenhouse reached 80%!
After more than 20 years of development, such as the southeast white shrimp industry from the origin of development to maturity and leaps, from the original single shed 600 pounds to the current 2000 pounds of production, after all the industry's research and efforts, it can be said that this is a place full of miracles, is a challenge and hope coexisting industry.
On December 27, in order to fully implement the spirit of the government's long-term management of the regulation and rectification of Penaeus vannamei aquaculture, summarize and exchange new technologies, new models and new experiences in the shrimp industry chain, improve the quality of breeding, breeding, processing and marketing in the industry, gather industry wisdom, integrate industrial resources, discuss industry hotspots, share high-quality products, and promote the ecological, healthy, stable and sustainable development of the Penaeus vannamei industry. The 2020 Annual Meeting of the Penaeus Vannamei Association and the Forum on the Sustainable Development of the Penaeus Vannamei Industry hosted by the Loch shrimp association of Rudong County met with the industry as scheduled in Rudong. The conference was hosted by Guangdong Haixingnong Group, co-organized by Hainan Zhongzheng Aquatic Products Technology Co., Ltd., Xiamen Baili Longcheng Marine Technology Co., Ltd., Hainan Jinlong Aquatic Seedling Co., Ltd., Jiangsu Haichuan Aquatic Products Technology Co., Ltd., rudong County Dejun Baolai Nursery, and supported by many outstanding enterprises in the industry.
The 2020 Annual Meeting of the Penaeus Vannamei Association and the Forum on sustainable development of the Penaeus vannamei industry
The guests who attended the meeting included Jiang Shujian, member of the Standing Committee of the East County CPC Committee, Li Jinjin, director of the Fisheries Division of the Nantong Municipal Bureau of Agriculture and Rural Affairs, Lu Qinqin, director of the Jiangsu Marine and Fisheries Research Institute, Shi Haibing, deputy director of the East County Agricultural and Rural Bureau, Cao Hui, director of the East County Supply and Marketing Cooperative, Zhou Junjian, director of the East County Quality Supervision and Inspection Institute, Jiang Xiewu, vice president of Guangdong Haida Group and chairman of Guangdong Haixingnong Group, Professor He Jianguo of Sun Yat-sen University, chief scientist of the national shrimp and crab industry technology system, and Wang Lei, researcher of the Institute of Oceanography of the Chinese Academy of Sciences. Professor Dai Xilin of Shanghai Ocean University, Wan Xihe Researcher of Jiangsu Institute of Oceanography, Professor Du Guoping of Guangdong Ocean University, Dr. Shen Hui of Jiangsu Marine Fisheries Research Institute, such as Liu Fusheng, President of Dongxian White Shrimp Association, Shi Mingshan, Secretary-General, and shrimp farming experts in the county, with more than 800 participants.
Jiang Shujian, member of the Standing Committee of the Rudong County CPC Committee, delivered a speech
For example, Liu Fusheng, president of the East County White Shrimp Association, made a speech
In 2020, the work summary of the Rudong County White Shrimp Association of South American White Shrimp was: 1. The high-quality operation of the seed detection platform; 2, the information service platform was stable and good, and it was communicated through the WeChat platform to solve problems for farmers; 3, to carry out technical training and consulting services on a number of breeding topics; 4, to build a high-quality input testing platform, etc.
The next step of the association's work includes continuing to improve the quality of fry as the top priority of the association's work, strengthening the seedling inspection platform and increasing the intensity of seed detection; rationalizing and standardizing the aquaculture input market, planning and establishing a high-quality aquaculture input platform; standardizing the cultivation of South American white shrimp, and conscientiously implementing the "Opinions on the Implementation of special rectification of the standardized breeding of Penaeus vannamei in Rudong County"; and exploring new ways for aquaculture tailwater and tail gas to meet the standard discharge standards.
Jiang Xiewu, vice president of Guangdong Haida Group and chairman of Guangdong Haixingnong Group, delivered a speech
Ecological breeding master Wang Qiujun shared his breeding experience
Shi Haibing, deputy director of the Agriculture and Rural Affairs Bureau, gave work guidance
Wonderful report
Report Title: From the perspective of disease prevention and control, talking about the future direction of shrimp farming
Chief Scientist of the National Shrimp and Crab Industry Technology System, Professor He Jianguo of Sun Yat-sen University
Disease is the bottleneck of the development of shrimp farming industry, disease prevention and control technology is the card neck technology, the key is to eliminate the source of infection, cut off the transmission route, reduce environmental stress three aspects to solve the disease problem. Taking the high grow-out rate of Rudong as an example, it mainly benefits from two aspects, one is the use of groundwater to effectively eliminate pathogens in water sources, and the second is that the association adopts strong testing methods to help farmers choose high-quality shrimp fry.
The main key points of the prevention and control technology of leukoplakia syndrome are the selection of SPF shrimp and shrimp fry, the second is to regulate the environment to prevent the latent infection of the virus from turning into acute infection, and the third is to eliminate the ecological niche of healthy shrimp feeding dead shrimp and cut off the transmission route of the disease.
The root causes of noncommunicable diseases (HPNS) are eutrophication of water bodies, environmental ecosystem disorders and feeding habits of white shrimp, causing infections of the digestive tract and liver and pancreas, and hepatobatic necrosis can be prevented by reducing the density of culture, reducing the degree of eutrophication in ponds, reducing the input of pathogenic bacteria and water nutrient salts from exogenous conditions, and eliminating pond shrimp feedable particulate matter.
The root cause of white stool is that the feed is difficult to digest, the shrimp feed on the spoiled particulate matter and harmful bacteria in the water body, and the treatment measures include reconstructing the breeding ecosystem and using high-quality probiotic fermentation feed
Prevention and control measures of hepatenteric cellworm: select purified SPF shrimp fry, use thoroughly disinfected water bodies, prevent insects (such as dragonflies) from entering the aquaculture water body, and maintain a good breeding environment.
The main cause of "glass shrimp" is highly pathogenic Vibrio infection, other viruses have accelerated the death of shrimp fry, prevention and control measures: marking the seedlings do not carry Vibrio, water purification, the use of antibiotics allowed by the state.
Infrastructure + two + breeding mode + high-quality feed + disease prevention and control + integrated breeding management technology is the main way out of shrimp farming in the future, intensive aquaculture will rely more on engineering technology and standardized management, including the use of SPF shrimp fry, aquaculture water purification, timely elimination of particulate matter of aquaculture water, stable and efficient water quality control products.
Report Title: Standardization and Transparency of Shrimp Fry Production- Some Thoughts on the Problem of Selecting Seedlings in Rudong
Professor Wang Lei, Institute of Oceanology, Chinese Academy of Sciences
The advantages of shrimp farming in the east shed are eye-catching from the annual phylogenetic rate and yield, and there are also certain hidden dangers in development, such as whether the water source can be guaranteed and whether the technology is standardized. In Rudong, is "cheng ye shrimp fry, defeat also shrimp fry" established?
Regarding the selection of shrimp fry, as farmers, we should pay more attention to the nursery and the standard rough farm, and the operation of a standardized nursery should include strict biological security work, basic but comprehensive water treatment units and standardized processes. Detection should be a firewall, not a breeding technology, systematic and fine management is the root of breeding success.
At this stage, through continuous data accumulation and summary, coupled with the awareness and determination of producers, the standardization and controllability of shrimp fry production is completely feasible. Standardized and replicable seedling breeding process is centered on quality inspection (data), water treatment, algae cultivation, larval cultivation and shrimp fry cultivation and other links are closely coordinated, through close monitoring of the detection data of each link, so that it is always controlled in the normal range, so as to form a production mode of cultivating shrimp fry according to a fixed process, and the ultimate purpose is to ensure the stable quality of different batches of shrimp fry. In addition, the producer must realize that what can be done according to the regulations or given to the equipment should try not to interfere with the subjective consciousness of the individual, otherwise once this habit is formed, it will slowly become a so-called "method". Rough field management also needs to be standardized and standardized. Farmers should have a certain understanding of the shrimp fry production process, but through online video, in-situ monitoring and other ways to achieve seedling transparency, while forming a traceable platform.
In general, we should improve the probability of selecting good shrimp seedlings by understanding the characteristics of the seed source, summarizing the germplasm effect, paying attention to the nursery, paying attention to the comprehensive analysis of multi-party information such as detection.
Report Title: Healthy Ecological Farming Technology of Penaeus vannamei
Professor Dai Xilin, Department of Marine Biology, Shanghai Ocean University
Raising shrimp well requires good seedlings, good water, good materials, good technology, good management, good environment, and good products. The principle of pond water quality regulation is to control the amount of organic matter released, improve the utilization rate of feed, and use ecological and facility means to degrade or remove organic matter. The main ecological measures of healthy breeding technology include dredging fertilizer water, fish and shrimp polyculture, combined oxygenation, regular use of microbial preparations to regulate water quality, regular use of substrate improvers to improve substrate, planting of floating water plants, stocking of bio-based, ecological purification pond cyclic ectopic treatment, sewage treatment facilities cyclic ectopic treatment.
In terms of feeding, master several key points: 1, pre-feeding to determine the amount of bait, 2, carefully check, 4-8 times a day, and make a good record, 3, the adjustment of day and night feeding throughout the whole cycle of breeding, 4, the increase in daily bait is a wave ladder.
Report Title: Analysis of the Development Trend of Penaeus vannamei Culture Model in South America
Wan Xihe, researcher of Jiangsu Marine fisheries research institute
The extraordinary success rate of farming has made shrimp farming in Rudong small sheds the most concerned model in the industry, and the scale of shrimp farming in Jiangsu has developed to the second in the country. We analyze that the reasons for the success of shrimp farming in Rudong are as follows: the groundwater source is safer and more assured, the salinity of the water body is low, and it is suitable for the cultivation of Penaeus monodon in South America; the water body is self-contained "semi-flocculent" culture; the water-saving culture can be less input; the closed small water body, the system is easy to control; the pathogen is blocked, the breeding disease is less; the breeding environment is more independent, the climate impact is small; the detection and screening of high-quality shrimp fry, improve the grow-out rate and so on. However, at the same time of rapid development, we are also facing many problems, such as substandard discharge of water, shortage of groundwater resources, uneven quality of seedlings, and inputs to be regulated.
How should small greenhouse breeding develop, and in the future, we should pay attention to these aspects: aquaculture towards standardization, regionalization towards coastalization, management towards parks, commerce toward branding, technology towards maturity, model towards nationalization, tailwater discharge standardization, and high-quality industrial development.
Report Title: Impact of Seed Detection on the Quality and Industry of Penaeus monodon in Jiangsu
Shen Hui, associate researcher of Jiangsu Marine fisheries research institute
Seed detection has a certain impact on the success rate of Penaeus vannamei culture in South America and can also reduce the likelihood of drug abuse. In 2019, the Ministry of Agriculture and Rural Affairs issued the "2019 National Aquatic Animal Disease Surveillance Plan", compared with 2014, a number of new shrimp disease surveillance targets were added, which shows that the Ministry of Agriculture and Rural Affairs is paying more and more attention to the impact of shrimp diseases.
Associate Researcher Shen Hui introduced the pathogenic epidemic characteristics and symptoms of common shrimp diseases EHP and AHPND in the shrimp farming mode of small greenhouses. To sum up, seed pathogen detection is an important prerequisite for the success of breeding and the healthy development of the industry, and a correct understanding of the test results and scientific and reasonable prevention and control measures is an important guarantee; but pathogen detection, pathogenic mechanism and inhibition products still have a long way to go.
Report Title: A Brief Discussion on the Optimal Management of Shrimp Farming in Small Sheds
Professor Du Guoping of Guangdong Ocean University
The root cause of the problems of slow growth, white stool, and stealing death encountered in shrimp farming is environmental degradation, lack of nutrition, and pathogen invasion, so we must pay attention to the environment and water quality regulation problems in the breeding of Penaeus vannamei. How to improve the aquaculture water environment? We must remember the "four tips for water quality" - bottom, oxygen, algae, and bacteria.
One of the advantages of the east greenhouse breeding pond is that the pond is shallow and shallow, and the biggest limitation is the collection of pollution, combined with these basic conditions, we can improve the breeding environment by purifying and strengthening the bottom oxygen. However, the principle of water transfer is to ensure the premise of bottom oxygen, and the water body protection is mainly based on algae and fungi. Use disinfectants with caution when not necessary; use organic matter such as microorganisms and sugars to strictly prevent hypoxia and hypoxia; mud care and intestinal conditioning, mainly yeast; competitive control of algae water transfer, mainly photosynthetic bacteria; algae old and thick (easy to lack of oxygen) when the use of microorganisms and disinfectants.
Interactive exchange of hot issues
The guests who participated in the interaction included Wang Lei, researcher of the Institute of Oceanography of the Chinese Academy of Sciences, Professor Dai Xilin of Shanghai Ocean University, Wan Xihe, researcher of Jiangsu Institute of Marine Fisheries, Professor Du Guoping of Guangdong Ocean University, Dr. Shen Hui, associate researcher of Jiangsu Institute of Marine Fisheries, Jiang Xiewu, vice president of Guangdong Haida Group and chairman of Guangdong Haixingnong Group, and Lin Shaojie, technical service director of Guangdong Haida Group in East China.
Good product sharing speech
Exhibitor style
Medal awarding ceremony
Awards ceremony
Wonderful tidbits
【Keywords】: Such as the East Association of South American White Shrimp aquaculture