Lotus seedling breeding and adult fish breeding technology

Hibiscus is a new type of indica hybrid selected by Provincial Fisheries Research Institute. It is a omnivorous fish at the bottom of the ground. It is a staple food plankton at the stage of seedlings and it turns into omnivorous when it reaches the summer flower specification. More living in the bottom of the water body, resistant to low oxygen, the water quality requirements are not high, fertilizer, the optimum growth PH value of 7 to 9, the best growing water temperature is 24 ~ 28 °C. Hibiscus spp. has obvious growth advantages, which is 63.9% faster than Pengze Cang and silver crucian carp and 27.8% faster than Xiangxiong. Under the normal culture condition of the pond, the fish fry can develop into commercial fish in the year, and the average annual adult fish can reach 0.6 to 1 kilogram, and the largest individual exceeds 1.5 kilograms. The area of ​​seedling cultivation ponds for seedlings is generally 1 to 2 mu, and the water depth is 0.5 to 0.7 meters in the early stage of cultivation and 1 to 1.5 meters in the later period. The seedling ponds are preferably close to the water source, with convenient injection and drainage. The pool shape is rectangular, sunny, flat at the bottom of the pool, and the water inlet should have filtering facilities to prevent wild fish and harmful organisms from entering. 7 to 10 days before stocking, the fry is sterilized with 150-200 kilograms of fresh lime ponds per acre, and fertilized with water quality. When fry is stocked, it is required to test the water first. Wuzi breeds 300,000 to 500,000 per acre of water, and 100,000 to 200,000 per acre. After stocking, the first 6 to 7 days Quanchiposa soya milk, after the three powder can be fed, oil glutinous, wheat bran and so on. Wuzi generally cultivate 7 to 10 days out of the pool, inch Aberdeen cultivation 15 to 20 days out of the pool, the fish out of the pool 1 to 2 days before the net exercise to enhance the fish fry. Fish species breed 2 to 3 cm of fry 6,000 to 8,000 fish per acre, and feed the powdered feed in advance. The specifications can reach 7 cm or more and tame the small pellet feed. The crude protein content of the feed is required to be about 30%. Feeding, after 5 to 7 months of breeding, fish species can reach 75 to 150 grams per tail, the output reached 300 to 450 kg per mu. The main breeding of adult fish: pond area of ​​2 to 10 acres, depth of 1.5 to 2 meters, flat bottom. 50 to 150 grams of rearing fish per acre are reared with 800 to 1200 fish tails, with 10% salmon and carp species. Feed the compound feed with a crude protein content of about 30%. During the period of strong growth, the amount of feed per day is 5% to 8% of the fish's body weight, and 3% to 5% in the later period. It adheres to the scientific feeding method of “Four Sets” and “Three Looks” and feeds 4 to 4 times a day. 5 times. Strengthen day-to-day management, and according to the water quality, timely add new water, start aerators, increase water dissolved oxygen, after 5 to 7 months of breeding, per mu can produce hibiscus 400 to 600 kg. Polyculture: In the ponds where the main nourishment grasses, grasses, cockroaches, and catfishes are cultivated, 200-300 tails of hibiscus and spring fish are mixed per acre, and appropriate amount of concentrate feed is fed, without affecting the yield of the main fishes. Per mu can produce hibiscus 100 ~ 150 kg. Net cage culture: The use of hibiscus temperate temperament, resistant to intensive farming characteristics using cage culture. The cages should be installed in lakes or reservoirs with fresh water, no pollution, a water transparency of 0.8 to 1.2 meters, a pH of 6.8 to 8, a water depth of at least 3 meters, and ventilation to the sun. Small and medium-sized cages are preferred, and the box spacing is 1.2 meters. 200 to 400 spring fish stocks are stocked on a square meter basis, and compound feeds having a crude protein content of about 30% are fed. Strengthen day-to-day management, diligently check cages, prevent escape, and produce 100 to 200 kilograms of hibiscus per square meter. Paddy field cultivation: According to the technical operating procedures, a fish culture facility will be set up. Each mu of rice field will be stocked with 100 to 200 tails of hibiscus, summer fodder, intensive feed, and careful management. After 4 to 5 months of breeding, the weight of each tail water can reach 0.2-0.3 kg, and 40-60 kg of fish can be produced per mu. Prevention and control of fish diseases During the entire cultivation period, the principle of “total prevention and active treatment” should be implemented. During the vigorous growth period, aquaculture water bodies should be disinfected with lime or trichloroisocyanuric acid every Other month. Symptoms of vertical scale disease: The diseased fish is dark, with rough surface, and the front scales of the fish are erected. The scaly sac contains translucent liquid. In severe cases, the scaly sac contains a blood body. Control methods: 1 The whole pool is sprayed with trichloroisocyanuric acid, with 0.4 to 0.5 grams per cubic meter of water. 2 Every 100 kilograms of fish is fed with 250 grams of allicin every day. Feed it for 3 to 6 days. Symptoms of white cloud disease: The diseased fish secretes a large amount of mucus on the body surface to form a layer of white slurried film. In severe cases, the base of the scales is congested and the scales fall off. Control methods: 1 use strong chlorine fines throughout the pool, with 0.3 to 0.4 grams per cubic meter of water; 2 every 100 kilograms of fish with 20 grams of oxytetracycline mixed feeding, feeding 3 days. (Hunan Fisheries Research Institute)

Single Roller Magnetic Separator

Introduction of Single Roller Magnetic Separator:

The Single Roller Magnetic Separator has one roller in middle of its body with high magnet strenght, its magnet block is half fan-shaped. when grain, seed or powder materials passing by, the magnetic materials such as iron pieces , screws, nuts etc will be stick on the left side of roller where there is magnet, and release when the roller rotate to right side that don't have magnet. so the grain and magnetic materials will discharge from two outlets. 

This type of Magnetic Separator need motor to rotate the roller. it can be used independently or install on other equipment.

Application of Magnetic Separator :

TCXD series Magnetic Separator can separate iron pieces or ferrous granules from varies materials such as grain, seed, beans, flour, minerals and chemicals etc. 

Specification of Magnetic Separator :

Model	Capacity	Power	Dimension	Weight
TCXD2025	6t/h	0.37kw	370×330×540mm	59kg
TCXD2035	12t/h	0.37kw	470×330×540mm	70kg
TCXD2050	18t/h	0.55kw	620×330×540mm	95kg

Single Roller Magnetic Separator

Single Roller Magnetic Separator,Rice Magnetic Separator,Magnetic Roller,Oilseed Magnetic Separator

SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , http://www.seedgraincleaner.com