A detailed explanation of the main points of culture techniques of Rana nigromaculata

The black spot frog is not only a "farmland guardian", an expert at preying on many kinds of rice pests, such as borer, moth, rice bract, locust, cricket, cicada and cricket, but also a medicinal animal that integrates food and health products and medicine, and has become a new species in the breeding market in recent years. Here is a detailed explanation of the main points of the breeding technology of the black spot frog, hoping to give you a reference.

I. site selection of black spot frog culture

1. Water quality requirements

When selecting the site, we must pay attention to the place where the water source is sufficient and the water quality is good, and it is best to test the water quality. The black spot frog is suitable for survival in the water quality of weakly alkaline (pH = 7-8).

2. Power requirements

It is necessary to have reliable power guarantee to meet the daily management of the black spot frog.

3. Water conservancy requirements

It is necessary to do a good job in drainage and irrigation, convenient access to water and smooth drainage, so that drought and waterlogging can be resisted.

4. Geographical location requirements

Stay away from industrial and domestic pollution sources, do not choose areas with frequent natural disasters, if you need to lease land, we should pay attention to ensure the legitimacy of the land and avoid land disputes.

Second, the establishment of black spot frog culture pond

1. Pond construction

Taking mu as the unit, according to the specification of 20 meters long and 4.5 meters wide (depending on the terrain), the inner pool is 20 meters long, 1.5 meters wide and 0.4 meters deep, and the bottom of the pool is covered with black impervious plastic film. The two sides and the bottom of the inner pool are compacted with soil, leaving a land area 1.5 meters wide on both sides, which can be used to inhabit the black spot frog.

In addition, a sky net 2 meters above the ground (for people to travel freely) is erected above all ponds to prevent natural enemies such as egrets, fish eagles and sparrows from invading. Water intake and drainage pipes should be designed before and after the pond to ensure the smooth flow of water and drainage during the breeding period.

2. Construction of natural environment

In order for the black spot frog to grow better, it is necessary to create a relatively closed imitation natural ecological environment. You can hang some energy-saving lamps on both sides of the pool, plant some soybeans, and raise several crucian carp fry in the pool after the black spot frog has changed from a tadpole to a young frog.

III. Daily feeding of Rana nigromaculata

1. Bait

Because the eyes of the black spot frog are highly myopic, they can only see the living creatures in front of their eyes, so the bait they feed should choose to get the bait. For example, yellow powder insects, earthworms, fly maggots (larvae of flies), etc., taking into account the breeding cost, fly maggots are the best bait choice, their bodies are rich in protein and amino acids, and their nutritious maggots have stronger activity and better palatability. it is easier to be found by black spot frogs and ingest maggots, which is easy to manage, short cycle, low cost and high yield.

2. Prevention of escape

The purse seine outside the intensive culture pond is mainly to prevent the black spot frog from escaping. Because of its wild nature, it is good at jumping to often check whether there are holes or holes in the purse seine and repair the blockage in time.

3. Disease prevention

Rana nigromaculata is a wild animal with strong vitality, and in general, there are no major infectious diseases, but it should be noted that skin rot will occur when the water is unclean or when the frog is mixed in the wild (without disinfection). If there is a local infection, the diseased frog should be cleaned up and isolated in time, and the white skin of the thigh should be injected with penicillin sodium solution.