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American frog breeding technology
U.S. frogs are a new type of fine meat frogs introduced in China. They have strong cold resistance and no hibernation habits can be grown as long as they are fed. The frog's body weight is 5-7 times that of the native frog, and the largest one is 1.8 kg. The frog is docile, not good at jumping, crawling and walking, spawning, fast growth, wide feeding, easy feeding, easy management, and less disease. A female frog can spawn 7,000 to 10,000 eggs a year. From 4-5 days from spawning to hatching, it takes only three months for a commercial frog to grow from a young frog to 0.4-0.5 kg. There are 20 young frogs that can be stocked per square meter. At least 6,000 to 8,000 can be raised per acre of water, 1,500 kg of frogs can be produced per mu, and the net income is 20,000 to 30,000 yuan. Due to the conventional cement pond breeding method and the large investment in infrastructure, which limits the development of the rural aquaculture industry, My Farm Aquatic Company's beautiful frog breeding has summarized a set of earth pond intermittent cultivation of beautiful frog technology, which is suitable for the majority of farmers. The specific introduction is as follows. (1) Construction of commodity frog pond 1. Location selection: The location of the aquaculture pond is water, no pollution, quiet environment, and the north wind is not blocked in winter. 2. To build a pond method: In a rice field or on an empty surface, a pool of 600-700 square meters should be drilled according to a 1000-square-meter pond. The depth of the pool is about 1 meter, and the slope of the pool is about 1.3, which is convenient for frogs to go ashore. The remaining 300~400 square meters of planting fruit trees, planting Vegetables or pools are surrounded by nylon cloth or plastic screens with a width of 1.5 meters or so. They are buried 20 centimeters below the ground. The frogs escape and the rats and snakes enter the invading frogs. . After the pool is repaired, 150 kg of quicklime is used for disinfestation per 1,000 square meters, and water frogs can be released after 5 days. If ponds, dams, and ditches are used to raise frogs, as long as they do a good job of anti-escape facilities, they will leave open spaces next to the pools to eliminate debris, rodents, and snakes, and they can raise frogs after disinfection. (b) Construction of a species of frog pond and spawning cistern Where a large number of species of breeding frogs can be reared, commercial frog ponds can be used for breeding. If the number of frogs is small, one frog can be constructed per square meter of breeding frog, but the minimum should be More than 10 square meters, built pool requirements with the commodity frog pool. During the breeding season, the species of frogs lay their eggs in the breeding ponds. Because of the large number of frogs and frequent activities, they easily crash into the bottom of the water and cause death due to lack of oxygen. Therefore, they must stick to the patrol pool several times to find the eggs and fish it immediately. Get up in the incubator. (c) Incubation using cages. Use a nylon cloth to grow a ship-shaped cage 2 meters in width and 1 meter in width, and put it into a commercial frog pool. The cage is filled with 30 to 40 centimeters of water. The surrounding is fixed with bamboo rafts. The top of the box is covered with bamboo mats or straw curtains. In the sun and rain, the tanks were filled with floating plants, and the picked up eggs were enlarged to incubate in water grass. About 6000 eggs can be laid per square meter, and each box can be used to store 1 to 2 eggs on the same day. Under suitable temperature, larvae can be hatched in 2~3 days, and the hatching rate is as high as 80%~90%. (d) Cockroaches The newly hatched cockroaches can be kept in hatchery cages or moved into cockroach-cultivated cages (cage practice is the same as incubator). The water depth of the cage is required to be more than 50 cm to facilitate the movement of the cage. In each cage, there are 1 to 2 feeding bowls, and the basins should be submerged into water 10 cm to facilitate feeding.èŒèšª just hatched within 4 to 5 days of nutrition by yolk sac, no food. After being fed with cooked egg yolks, use 3/3 egg yolks to be slurried into every 3 tails. This can be combined with feeding raw soy milk, bean dregs, pig blood and other foods, as well as artificial feeds. As the earthworm grows, it should be gradually binned to reduce the stocking density. After the larvae have been grown for 1 to 2 months, they can be placed in commercial frog ponds. Each 40,000 square meters of water can be stocked with 10,000 oysters until they develop into frogs.