Solving the problem of salmon fry

Carp is an excellent fish species with many advantages. It has broad prospects for development in reservoir lakes, Taihu Lake and commercial fish bases in the country. Due to the irritable temperament of catfish, the mortality rate of fish fry in fishing ponds is relatively large, the relative amount of broodstock is small, the mortality rate of artificial hatching broodstock is relatively large, the artificial hatching technology is not fully grasped, and the living environment of natural spawning is compared. Special factors, and difficult management of fishery, and other factors, the number of fry and natural reproduction fry is relatively small, resulting in the lack of fry in most of the country's waters. The bait resources in many large and medium-sized waters can only be wasted. In order to solve the problem of the source of trout species, Linyi County, under the great care and guidance of the superior departments of water conservancy, aquatic products, and science and technology, had worked in the middle and late 1980s. The aquatic experts of the Provincial Aquatic Products Research Institute used the Guanting reservoir of Linyi County as a base. For the first time in the province, the artificial breeding of the yellow-tailed tapir was successful. In the two years, 15 million fish fry were hatched. In the middle period of the 1990s, the aquatic technicians of the Linyi County Water Conservancy Bureau used the Tonghuan Reservoir as the base, and established the first national fine seat for the first time. The natural spawning ground of the skunk and rakes was run for three years, and more than 40 million fishes were hatched by artificial hatching. The two squid in our county produced a total of 55 million tails, which were successively transplanted to reservoirs and lakes outside the province and beyond. There are more than 250 surfaces and the transplanted water surface has reached more than 500,000 mu. Wherever the water is transplanted, without adding any bait, a new increase of 1 million kilograms of carp per year and about 2 kilograms of carp per mu will be achieved, resulting in significant economic and ecological benefits. Linyi County, the two kinds of fish transplantation and promotion, the technical level reached the domestic first and the province's leading, won a total of six provinces, ministries, and municipal scientific and technological achievements award. What is particularly gratifying is that in recent years, Comrade Peng Liangyu, the head of a special fish breeding farm in the city of Liling, has studied hard, studied earnestly, worked steadfastly, successfully mastered the technology of artificially hatching herring fry, and promotes large-scale production of herring stock every year. Throughout the country, 7 significant results were achieved. The two places have contributed to alleviating the severe lack of carp, but it is still difficult to meet the needs of carp seedlings across the country. Two years ago, the country did not have a large-scale, large-scale production of catfish production base. In order to quickly convert scientific and technological achievements into productive forces, make better use of medium and large-scale surface water resources, and resolve the serious lack of squid conflicts as soon as possible, in the past two years, fisheries scientific and technical personnel from Linyi County and Liling City have jointly joined forces in the Chinese Academy of Sciences and the Ministry of Water Resources. Under the care and support of the leaders of the Fisheries Research Institute and experts, we have closely cooperated and jointly developed and invested 4.5 million yuan in the establishment of a provincial-level catfish breeding ground in Hunan Province. Recently, the provincial fishery department organized inspections and acceptances. The acceptance of the indicators has reached the standard, and now it has become the largest base for carp in the country. It can annually produce 200 million fishes of various kinds of carp and produce 10 million large-scale fish species each year. With the utmost integrity, the most mature technology, the most abundant fry, the best service, high quality, superior prices, and preferential supply to reservoirs, lakes, ponds, and commercial fish bases throughout the world, it can produce a huge economy. Social and ecological benefits.

Vegetable Seeds are used in the production of vegetable seeds, divided into conventional and hybrid seeds.Vegetables that conventional types of vegetables to grow itself through natural laws of seeds, vegetables hybrid seeds (general hybrid F1 generation of hybrid) is by using different features of plants (male and female parent) for their pollination, change its characteristics.

First, many varieties and complex.In science and technology is the first productive force and science and technology oriented market sense, such as policy, scientific research institutions, experts and scholars engaged in the work of agricultural breeding have mushroomed, new achievements and new varieties are created.The resulting problems, a species and strains are many, character difference is small, removing impurity harder when breeding, varieties of authenticity and purity is difficult to guarantee;Second, in many scientific research units and experts and scholars of breeding race, south guo is inevitable the sham as the genuine, some traits instability, poor adaptability, or no market with a production value of species, strain, misleading, interfere with the normal order of seed production and operation.So for buying vegetable seeds, should be on the basis of reputation good place.Buy formal cultivated seeds.

Second, the seeds and the seeds are similar, strong concealment on production.A similar appearance.And both in plant and seed itself, the difference between conventional seeds is not very big.So on the choice is very difficult to identify.Thus caused the insufficient understanding of seed and hurt production.Especially the base vegetables with particularly can't careless.

Vegetable Seeds

Vegetable Seeds,Green Pumpkin Seeds,Flesh Watermelon Seeds,Fresh Vegetable Okra Seeds

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