This species is a warm-water fish of the genus Polygonaceae. Its body is thick, with a purplish body (black ebony) on the whole body. It is black on the back and bright in color. It is named after the rice field pods. The breeding period of ponds in ponds and ponds is short, the utilization rate of ponds is high, the investment of fishes is less, and the breeding efficiency is better. The main points of the pond culture technology for the alfalfa blossoms are described below:
Pond Condition The pond area is 0.33 to 0.66 hectares. The water depth is 1.5 to 2 meters. The water source is sufficient, the water quality is good, and drainage and irrigation are convenient. The inlet is equipped with wild fish facilities, the bottom of the pool is flat, and there is an aerator.
The pond is prepared to use 75kg to 100kg of lime for every 667m2. When the depth of the pond is 10cm, the pond is cleared to kill pathogens, wild fish and predators in the pond. 5 days to 7 days before the fish species are stocked, 200 kg to 300 kg of organic fertilizer such as fermented swine manure and duck dung are applied at a depth of 1 meter per 667 square meters of water. The pond fertilizer and water are used to cultivate suitable biofeeds to facilitate fish species. The rapid growth.
The pros and cons of fingerling stocks are directly related to the growth status of the fish and the effects of the culture. Therefore, the fish species that are required to be put in must have strong physique, neat specifications, and no disease or injury. For every 667 square meters, 10,000 to 15,000 fish species of summer fish can be stocked as the main cultured fish, and stocked with appropriate amount of oysters and oysters (3:1). The fish in front of the pond needs to be soaked in 3% salt solution for 5 minutes to 10 minutes to kill pathogens that may be carried by the fish species. After the fish species are sterilized, they are selected in the pond at the outlet of the pond.
Aquaculture management water quality regulation: After the fish is put into the pond, add water once every 7 days to 10 days, each time adding 10 cm to 20 cm of water. Since Amaranthus spp. should grow in slightly alkaline pool water, lime is splashed once every 15 days. For every 667m 2 water depth, 1m lime is used for 15kg to 20kg of lime. Ponds with alkaline water quality should not use lime to adjust water quality. Maintain the fatness in the pool water with a transparency of 25 cm to 30 cm to ensure that the water quality is good, live, and cool.
Feeding management: According to the different growth stages of alfalfa, it is necessary to feed the full-fledged pelleted feed with a pectin content of 28% to 30%. In the early stage of aquaculture, a pellet feed with a protein content of 32% was fed to facilitate localization at the designated site. In the middle and later stages of the cultivation, grain feed with a protein content of 28% was fed and feeding was required for timing, positioning, quantification and quantification. Feeding twice a day, but feeding it 3 times a day in the hot season, the daily feeding rate is 30%: 40%: 30%. Due to gluttonous gluttony, as long as the palatability of food feed is greatly increased, it must be fed scientifically. The amount of daily feeding is controlled to 4% to 8% of the body weight of the fish, and the amount to be fed is preferably 80% full. At the same time, a certain proportion of vitamins can be added to compound feeds to meet the growth needs of alfalfa.
Prevention of fish diseases: There are fewer diseases in locust buds, but prevention of fish diseases is still needed during the growing season and fish disease epidemic season. The general use of external consumption and oral administration combined methods for prevention, disinfection of drugs can use bleach, chlorine dioxide, etc., every 15 days Quanchiposa 1; add a certain proportion of antibiotics in the feed (such as allicin, etc.) The bait is fed once or twice a month. Regular inspection of the growth status of Smilax calyx, found that fish disease should be correctly diagnosed and treated promptly.
Pond Condition The pond area is 0.33 to 0.66 hectares. The water depth is 1.5 to 2 meters. The water source is sufficient, the water quality is good, and drainage and irrigation are convenient. The inlet is equipped with wild fish facilities, the bottom of the pool is flat, and there is an aerator.
The pond is prepared to use 75kg to 100kg of lime for every 667m2. When the depth of the pond is 10cm, the pond is cleared to kill pathogens, wild fish and predators in the pond. 5 days to 7 days before the fish species are stocked, 200 kg to 300 kg of organic fertilizer such as fermented swine manure and duck dung are applied at a depth of 1 meter per 667 square meters of water. The pond fertilizer and water are used to cultivate suitable biofeeds to facilitate fish species. The rapid growth.
The pros and cons of fingerling stocks are directly related to the growth status of the fish and the effects of the culture. Therefore, the fish species that are required to be put in must have strong physique, neat specifications, and no disease or injury. For every 667 square meters, 10,000 to 15,000 fish species of summer fish can be stocked as the main cultured fish, and stocked with appropriate amount of oysters and oysters (3:1). The fish in front of the pond needs to be soaked in 3% salt solution for 5 minutes to 10 minutes to kill pathogens that may be carried by the fish species. After the fish species are sterilized, they are selected in the pond at the outlet of the pond.
Aquaculture management water quality regulation: After the fish is put into the pond, add water once every 7 days to 10 days, each time adding 10 cm to 20 cm of water. Since Amaranthus spp. should grow in slightly alkaline pool water, lime is splashed once every 15 days. For every 667m 2 water depth, 1m lime is used for 15kg to 20kg of lime. Ponds with alkaline water quality should not use lime to adjust water quality. Maintain the fatness in the pool water with a transparency of 25 cm to 30 cm to ensure that the water quality is good, live, and cool.
Feeding management: According to the different growth stages of alfalfa, it is necessary to feed the full-fledged pelleted feed with a pectin content of 28% to 30%. In the early stage of aquaculture, a pellet feed with a protein content of 32% was fed to facilitate localization at the designated site. In the middle and later stages of the cultivation, grain feed with a protein content of 28% was fed and feeding was required for timing, positioning, quantification and quantification. Feeding twice a day, but feeding it 3 times a day in the hot season, the daily feeding rate is 30%: 40%: 30%. Due to gluttonous gluttony, as long as the palatability of food feed is greatly increased, it must be fed scientifically. The amount of daily feeding is controlled to 4% to 8% of the body weight of the fish, and the amount to be fed is preferably 80% full. At the same time, a certain proportion of vitamins can be added to compound feeds to meet the growth needs of alfalfa.
Prevention of fish diseases: There are fewer diseases in locust buds, but prevention of fish diseases is still needed during the growing season and fish disease epidemic season. The general use of external consumption and oral administration combined methods for prevention, disinfection of drugs can use bleach, chlorine dioxide, etc., every 15 days Quanchiposa 1; add a certain proportion of antibiotics in the feed (such as allicin, etc.) The bait is fed once or twice a month. Regular inspection of the growth status of Smilax calyx, found that fish disease should be correctly diagnosed and treated promptly.
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