The brazilian tapir, also known as the South American salmon, is a new species of freshwater culture that was introduced in Brazil in 1996 and successfully breeding in 1998. It has strong adaptability, fast growth, wide appetite, strong disease resistance, easy catching, delicate meat, and high economic value. It is suitable for promotion in southern China. The breeding of ponds in the Brazilian seabass is mainly cultivated and supplemented with flowers and white leeks. The yield is high and the results are good.
I. Pond conditions Brazilian quails have low requirements for pond culture conditions. Generally, ponds or small ponds and ditches for rearing four home fishes can be cultured. The area ranges from a few to several acres, and the maximum is less than 10 acres. The water depth requires 1.2 to 1.8 meters.
Second, seed stocking
1. Qingtang Feishui: Seedlings must be sterilized in Qingtang 5 to 7 days before the seedlings are removed to remove wild fish and apply basic fertilizer to breed natural food so that the fish seedlings are rich in foodstuffs.
2. Stocking densities: 1200 to 1,500 fishes per acre are stocked in Brazil, and 100 white fishes are stocked. After 4 to 5 months of feeding, Brazil can weigh up to 350 to 500 grams per tail.
3. Disinfection of fingerlings: The stocking time of Brazilian cockroaches is generally at the beginning of May, and water temperature can be kept at about 15°C. Fish species should be sterilized by drug dipping prior to stocking. Malachite green can be used at 10 mg/l, dipping for 20 to 30 minutes, or potassium permanganate 10 mg/l for 30 minutes.
Third, bait and feeding
1. Feed: Brassica juncea is a omnivorous fish dominated by plants and is very bulimia. Under artificial rearing conditions, the feed source is very wide and can be fed rice bran, bean cake, bran, bean dregs, peanut cake, sugar cane, distiller's grains, and a small amount of fish meal, silkworm meal and so on. In the pond where the main bran is bred, it is best to feed the full-grain feed of alfalfa and cod for better growth.
2. Feeding: Feed according to the size of the fish body according to the size of the fish. The feeding amount of the juvenile fish is generally 8% to 10% of the fish's body weight, the fish breeding period is 5% to 7%, and the adult fish stage is 3%. ~5%. Feed twice a day, that is, 40% of the feed for the whole day at 8 a.m. and 60% for a feed at 4 p.m. Feeding should be regular, fixed-point, qualitative, quantitative.
Fourth, daily management of daily work should be dedicated management, daily observation of fish eating, activities and water quality, found that problems should be dealt with in a timely manner.
1. Regulation of water quality: pool water is oil green, dark brown, about 30 centimeters of transparency is appropriate, if the pool water is too thick, yellow, white, black, etc., new water should be added in time to regulate water quality. In addition, once every 20 days or so, the whole pool is splashed with quicklime to prevent disease and regulate water quality.
2.Tour Pond Observation: It is required to survey the pond three times a day. In the early morning, the patrol pond mainly observes the activities of the fish and whether there are floating heads. In the afternoon, the patrol pond can check the activities of the fish and the eating and drinking conditions. At dusk, the patrol pond mainly checks whether there is leftover feed and whether there is any floating head omens. When the seasonal weather suddenly changes during the cool season, the fishes are prone to floating heads.
I. Pond conditions Brazilian quails have low requirements for pond culture conditions. Generally, ponds or small ponds and ditches for rearing four home fishes can be cultured. The area ranges from a few to several acres, and the maximum is less than 10 acres. The water depth requires 1.2 to 1.8 meters.
Second, seed stocking
1. Qingtang Feishui: Seedlings must be sterilized in Qingtang 5 to 7 days before the seedlings are removed to remove wild fish and apply basic fertilizer to breed natural food so that the fish seedlings are rich in foodstuffs.
2. Stocking densities: 1200 to 1,500 fishes per acre are stocked in Brazil, and 100 white fishes are stocked. After 4 to 5 months of feeding, Brazil can weigh up to 350 to 500 grams per tail.
3. Disinfection of fingerlings: The stocking time of Brazilian cockroaches is generally at the beginning of May, and water temperature can be kept at about 15°C. Fish species should be sterilized by drug dipping prior to stocking. Malachite green can be used at 10 mg/l, dipping for 20 to 30 minutes, or potassium permanganate 10 mg/l for 30 minutes.
Third, bait and feeding
1. Feed: Brassica juncea is a omnivorous fish dominated by plants and is very bulimia. Under artificial rearing conditions, the feed source is very wide and can be fed rice bran, bean cake, bran, bean dregs, peanut cake, sugar cane, distiller's grains, and a small amount of fish meal, silkworm meal and so on. In the pond where the main bran is bred, it is best to feed the full-grain feed of alfalfa and cod for better growth.
2. Feeding: Feed according to the size of the fish body according to the size of the fish. The feeding amount of the juvenile fish is generally 8% to 10% of the fish's body weight, the fish breeding period is 5% to 7%, and the adult fish stage is 3%. ~5%. Feed twice a day, that is, 40% of the feed for the whole day at 8 a.m. and 60% for a feed at 4 p.m. Feeding should be regular, fixed-point, qualitative, quantitative.
Fourth, daily management of daily work should be dedicated management, daily observation of fish eating, activities and water quality, found that problems should be dealt with in a timely manner.
1. Regulation of water quality: pool water is oil green, dark brown, about 30 centimeters of transparency is appropriate, if the pool water is too thick, yellow, white, black, etc., new water should be added in time to regulate water quality. In addition, once every 20 days or so, the whole pool is splashed with quicklime to prevent disease and regulate water quality.
2.Tour Pond Observation: It is required to survey the pond three times a day. In the early morning, the patrol pond mainly observes the activities of the fish and whether there are floating heads. In the afternoon, the patrol pond can check the activities of the fish and the eating and drinking conditions. At dusk, the patrol pond mainly checks whether there is leftover feed and whether there is any floating head omens. When the seasonal weather suddenly changes during the cool season, the fishes are prone to floating heads.
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