Saturday, March 3, 2007
It Has A Number Of Advantages In Comparison
It has a number of advantages in comparison with natural spawning: There is a possibility of management of process of preparation of the manufacturer. Considerably possibilities of carrying out of breeding work extend. The joint maintenance of the manufacturer and posterity is avoided. Possibility to reduce herd of the manufacturer is represented. The released spawning ponds can be used for other fish-breeding processes. Factory cultivation of a carp became possible thanks to biotechnics progress, method working out injections. Group of biotechnical factors concerns: an accessory of carps to this or that breed, landing density, the size, weight of a body, fatness of fishes, their general physiological condition, etc. Environment factors concerns: change of hydrological and gas modes, salt structure of water, toxicity of environment. It is necessary to have in view of various illnesses more often arising because of influence of the reasons concerning two groups set forth above. PROBLEM: to transform commodity fish culture into the highly productive branch of the agriculture completely satisfying demand for live and frozen fish.
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