Techniques for Intensive Cultivation of Grass Carp by Small Reservoir

1. The fish species are stocked and intensively fed, and grass carp, group head locust should account for 40-50% of the total stocking amount, carp accounts for 20-30%, quail total accounts for 20-30%, group head oysters, bream, bream fish, etc. 10%. Requirements for the development of commercial fish that year, fish species specifications to achieve: 100-200 g / tail. Winter stocking is generally started after the adult fish is caught. It can adapt the fish species to the living environment of the reservoir as soon as possible. The spring stocking is conducted after the spring is opened. The reservoir can be used to disinfect and remove the wild. The amount of fish to be released may be 3000-3750 kg per hectare.

2. Feeding Technology Reservoirs Feeding fish can be fed only with compound feed or compound feed with green feed. The daily feed volume should be constantly adjusted according to changes in water temperature and weight gain of the fish. The compound feed can be calculated according to the daily bait rate table of cage fish and fed regularly; the daily feed amount of green feed can be placed in the feed box at 1.5-3.0% of the total weight of the herbivorous fish. The compound feed is generally fed twice a day, 8-9 am and 2-3 pm; green feed is fed once a day in the afternoon. In places where electricity is available, a black light can be installed on the surface of the water per hectare to trap insects so as to save the amount of feed.

3. Production management Before the release of fish species, the reservoir should be disinfected and debrided to increase the survival rate of the fish species, and check the fish escape prevention facilities. Small reservoir fish farming often encounters conflicts with farmland irrigation water. In the drought year, the water for the reservoir should be “tried”, ie, the irrigated area, the minimum water level for the fish culture, and the time for pumping water. In special circumstances, it is necessary to move Kugan fish to move fish to fish again to ensure that production and fish farming are correct.





Microscope Slide Boxes And Mailers

Slide Mailer,Slides Racks,Cardboard Mailer

Rong Tai Biochemical Engineering Co., Ltd. , http://www.shpipette.com