In today's freshwater fish cultures, if you want to find a species with less investment, relatively rich profits, and a relatively small aquaculture risk and market risk, it is the first new fish species to be promoted in recent years. The representative breeding techniques for high-yield alfalfa are summarized as follows:
I. Ponds and Water Quality Pond conditions: If there are polyculture or polyculture, the area of ​​ponds should be more than 2 mu. If intensive breeding, the pond area should be 5-10 mu. The pond requires that the bottom of the pool be flat and the bottom quality should be loam or sandy loam soil. The bottom mud is 15-25 cm and the water depth is generally 1.5-2.0 m. If the intensive production of oysters, the water depth is best to maintain 2.0-2.5 meters. Water quality: The water quality should meet the fishery water quality standards promulgated by the state, with dissolved oxygen above 4 mg/l and PH value between 6.8-8.0.
Second, the species of fish stocking specifications and quality: high-yield alfalfa to grow fastest in the year, the second year due to sexual maturity slowed down. Such as high yield and similar specification of domestic fish seed breeding, then you can put 3 centimeters per acre of high yield carp species 500, after 50-60 days of cultivation, can harvest 50 grams of large-size high-yield carp species 400 Above, such as high-yield and polyculture, depending on the type of the same pool, put 200-400 per mu of 3-12 cm high-yield squid species; if intensive breeding, then 3-12 cm of fish can be released per acre. 1800-2000 tail. The fish species that are required to be put into use are of the same specifications and are robust and disease-free. Fish species stocking: The best season for the delivery of high yield carp species is best before the end of May of the new calendar year, when the ponds are well-formed, and when the zooplankton is abundant, Xitang is the best time.
Third, the feed, such as high-yield oysters nesting or polyculture, the feed has no special requirements, can be fed according to the feed required for the cultivation of Other fish, but only slightly increased the amount of feed fed. If intensive breeding is required, artificial diets containing about 40% crude protein should be fed, and feeds of different particle sizes should be used at different stages of growth. If conditions are limited, they can be fed with peanuts, corn flour, and sub-flour. Supplemented by the self-matched feed, while reasonable fertilization.
I. Ponds and Water Quality Pond conditions: If there are polyculture or polyculture, the area of ​​ponds should be more than 2 mu. If intensive breeding, the pond area should be 5-10 mu. The pond requires that the bottom of the pool be flat and the bottom quality should be loam or sandy loam soil. The bottom mud is 15-25 cm and the water depth is generally 1.5-2.0 m. If the intensive production of oysters, the water depth is best to maintain 2.0-2.5 meters. Water quality: The water quality should meet the fishery water quality standards promulgated by the state, with dissolved oxygen above 4 mg/l and PH value between 6.8-8.0.
Second, the species of fish stocking specifications and quality: high-yield alfalfa to grow fastest in the year, the second year due to sexual maturity slowed down. Such as high yield and similar specification of domestic fish seed breeding, then you can put 3 centimeters per acre of high yield carp species 500, after 50-60 days of cultivation, can harvest 50 grams of large-size high-yield carp species 400 Above, such as high-yield and polyculture, depending on the type of the same pool, put 200-400 per mu of 3-12 cm high-yield squid species; if intensive breeding, then 3-12 cm of fish can be released per acre. 1800-2000 tail. The fish species that are required to be put into use are of the same specifications and are robust and disease-free. Fish species stocking: The best season for the delivery of high yield carp species is best before the end of May of the new calendar year, when the ponds are well-formed, and when the zooplankton is abundant, Xitang is the best time.
Third, the feed, such as high-yield oysters nesting or polyculture, the feed has no special requirements, can be fed according to the feed required for the cultivation of Other fish, but only slightly increased the amount of feed fed. If intensive breeding is required, artificial diets containing about 40% crude protein should be fed, and feeds of different particle sizes should be used at different stages of growth. If conditions are limited, they can be fed with peanuts, corn flour, and sub-flour. Supplemented by the self-matched feed, while reasonable fertilization.
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