An important reserve in increasing fish productivity is the introduction of fish culture in the practice of the method of joint cultivation of fishes of several kinds . that most fully use feed resources of the reservoir. Practice confirms the possibility of growing in a variety of combinations that reduce competition for food fish such as carp, carp, white and variegated silver carp, white Amur, etc.
Silver carp . With the introduction into farms of joint cultivation of fishes of the composition of the productivity of fish in ponds is 20 – 30 kg/ha water area. When grown with carp and herbivorous fish in pond farms of the southern areas by herbivorous fish receive an additional fish for at least 6 – 10 t/ ha, in ponds in the forest-steppe up to 3 – 5 kg/ha.
The silver carp eats all types of algae that occur in fresh water. Its power is supplied by filtering phytoplankton through a kind of arranged Gill apparatus. In Biotechnics of artificial breeding using the method of pituitary injections, where to produce offspring using the pituitary glands of fish / kg females. The ripening females after hypophyseal injections depends on the temperature conditions in the spawning basins. When ripe, the prevailing temperature of 21 – 26 degrees Celsius. Continue reading