Reservoir efficient fish farming method

The technique of fish farming in reservoirs has been a long-term issue. Now we will introduce the key technologies and models for efficient fish farming in small reservoirs———
I. Integrated breeding The comprehensive cultivation of reservoirs mainly involves the establishment of an ecosystem combining water and land with fish as the mainstay and livestock and poultry as supplements. Implement the three-dimensional and comprehensive utilization of fish culture in the water in the construction of pigs, ducks, chickens or geese. Pigs, ducks, and goose droppings can increase organic matter content in water, promote long-term reproduction of plankton, provide abundant food for fish, and make multiple use of material energy and form a virtuous circle. Generally, there are 500 to 600 fish per mu, 7 to 10 pigs, 20 ducks or 10 goslings.
Second, the use of large-scale, multi-species, and sufficient quantities of high-quality fry (species) for the distribution of fingerlings is the key to the high yield of the reservoir fish.
1, launch large-size fish species. Its specifications are: cockroach, carp 50-75 g/tail, grass carp 70-100 g/tail, carp 50 g/tail, carp 30 g/tail.
2, multi-species polyculture. According to the difference between the fish and the living water layer, the fish are selected and matched. The matching ratio is: 50% for carp, carp, 26% for grass and carp, 24% for carp and carp.
3, the amount of fish stocking. According to the conditions of the reservoir, but do not exceed the capacity of the water body. Implement proper conservation. Generally about 500 per mu.
Third, feeding and fertilization Small-scale reservoir fish breeding to obtain high yield, high efficiency, natural food alone in the reservoir is not enough, must increase the artificial bait. When fertilizing, pigs and duck dung must not be directly applied, and they must first be fermented and sterilized.
Fourth, stop the fish facilities and facilities to be built, otherwise it will cause a large number of reservoir fish escape, affecting the rate of adult fish collection. Reservoir barraging facilities can be constructed using nylon nets, bamboo shoots, barbed wire, reinforced bar grills, etc. Its mesh or spacing depends on the size of the fish species.
Fifth, fish disease prevention First, persist in using lime to clear the poison. The second is to wash the fish body with a 5% salt solution before the fish stocks go down. About 5 minutes, grass carp species need to be immunized by vaccination. The third is to spill drugs regularly. The fourth is feeding baits and food courts.
Sixth, catching rounds and putting small-scale reservoirs to implement round catching and rounding, generally adopting multiple releases at once, sub-harvesting, catching large and small, catching and catching.

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