How should bullfrog tadpole ponds and commercial bullfrog ponds be built?

Tadpoles are the larval stage of bullfrog ontogeny, and it is also the seedling stage of the production process, so it is the material basis for the production of bullfrogs. The quality of tadpole breeding determines what kind of environment tadpoles need to grow into bullfrogs, which is closely related to the growth of bullfrogs. Therefore, it is a very important work in the production of bullfrog breeding, and the breeding method of bullfrog tadpoles is of great significance to the success or failure of bullfrog breeding.

The construction of a standardized frog farm should include frog spawning ponds, hatching ponds, tadpole ponds, young frog ponds, commercial frog ponds and breeding frog ponds 6 types of breeding ponds, the number of various ponds, the size and whether to build or not, mainly according to the breeding object, breeding methods, breeding scale and site size.

It needs to be built separately, so that it can make better use of materials, including large-scale procedural breeding.

The breeding of <> adult frogs is the last link in the whole bullfrog breeding process, and it is also the most important production process. At present, bullfrog breeding can be divided into two ways: intensive and extensive. Extensive breeding is to release frogs in a relatively wide area and use natural bait to grow naturally.

Intensive culture is the use of smaller ponds and artificial bait for high-density farming. The following is mainly an introduction to the methods of intensive culture.

Adult frog breeding can generally be transformed by using pond weirs, lotus ponds and small natural ponds. The location should be selected in a place with flat terrain, sufficient water sources, convenient drainage and irrigation management, no flooding, and no drying up due to drought, and it is more ideal if there are flowing water conditions. The frog pond is 300-l000 square meters.

In addition to the water surface, a certain area of land should be left around and in the middle of the pond, and the ratio between the land and the water surface is generally 1:l. The slope of the pond should be large, so that the bullfrogs can land to rest and catch food.

The water depth should be determined according to the thickness of the local ice in winter, and the main thing should be to ensure that there is still a certain water depth under the ice in winter, so that the bullfrog can safely spend the winter at the bottom of the pond, and the water depth in the Yangtze River basin should be kept at.

Raising frogs in cement ponds should be equipped with barbed wire at the mouth of the pond to prevent frogs from escaping and the invasion of predators, and barriers should be built in earthen ponds. The materials used as barriers include bamboo curtains, bamboo fences, barbed wire, nylon nets and brick walls. Because bullfrogs have the habit of digging and burrowing, the barrier should be buried 30cm under the soil, and because the bullfrog can jump high and climb to escape, the height of some barriers on the soil is l5-2m.

Bamboo curtains and bamboo fences are used as barriers, and the size of the gaps and the mesh of barbed wire and nylon nets should be determined according to the specifications of the frogs.

In order to create a good living environment for the bullfrogs, a natural environment suitable for the bullfrogs should be arranged in the frog pond. It is mainly to plant some aquatic plants such as lotus root, cigu, calamus, callus white, and water cress in the frog pond for the inhabitation of bullfrogs. In the pond that doubles as an oviposition pond, some aquatic plants such as goldfish algae, Malayan eye green, water lily, and aggregate grass are also planted to facilitate the spawning of bullfrogs.

Flowers and grasses should be planted on the slopes of the ponds on land to attract insects and increase the feed for frogs.

Bullfrogs are afraid of heat, and the optimal water temperature for adult frogs is 23-30, and shrubs should be planted on the shore of the pond or small shade shelters should be built to reduce the temperature for bullfrogs to perch. In the hot summer, it is best to change the water once a day, the amount of water is 1 2, and the temperature difference between the old and new water is 1-2. Bullfrogs also have the habit of burrowing, and it is advisable to manually dig some burrows at the edge of the pond for bullfrogs to enter the burrows to rest in summer.

Through this arrangement, the environment of the whole frog pond can be more suitable for the habitat of bullfrogs, so as to promote the growth of bullfrogs and improve the survival rate of breeding.

In order to protect the environment, how to do breeding bullfrogs to make sewage filtration tanks.

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1. The wastewater treatment scheme of bullfrog breeding can be carried out by the combined process of "pretreatment, anaerobic and aerobic". First of all, the wastewater of the bullfrog is poured into the grid pool, and then the macromolecular pollutants and scum are intercepted through the grid, which can effectively reduce the subsequent process operation load and reduce the problem of wastewater equipment and pipeline blockage of bullfrog breeding. After the grid is simply treated, it can enter the regulating tank to adjust the water quality, water quantity, pH, etc.

2. Breeding bullfrogs can be planted in the bullfrog pond lotus root and aquatic plants, etc., so that the bullfrogs can rest, and some flowers and shrubs can also be planted around the bullfrog pool, so that the bullfrogs can attract small insects to eat. Before breeding bullfrogs, quicklime can be used to sprinkle and disinfect the whole pond, but measures should be taken to discharge sewage in the later stage. 3. The wastewater of bullfrog breeding must be treated in time, if it is a large number of bullfrog pollution, it is relatively large, because a large amount of sewage may have dead frog bodies and other pollutants.

If this wastewater is discharged directly into public waters without treatment, it can cause serious water pollution.