CATDOLL : CATDOLL: Is grazing in the frog ditch beneficial to the frog?

1. Is grazing in the Rana ditch beneficial to Rana

There is an ecological chain relationship here, and destroying the ecological chain will be harmful to the forest frog.

Grazing can cause certain damage to vegetation, and forest frogs need vegetation protection; but if grazing is carried out in an orderly manner (controlling the number and organic mobile grazing sites), it will promote vegetation growth and the breeding of wild insects, which is beneficial to the reproduction of forest frogs.

2. Are there artificial captive forest frogs in Hunchun?

No, it's usually covered.

There are none anywhere. The Northeast Forest Rana are all wild.

3. When is the best time to catch forest frogs? Do forest frogs mainly live in meadows or mountains?

Rana is very similar to frog, but many people think that Rana is a kind of frog that lives in the mountains and forests. So, when is the best time to catch Rana? Does Rana mainly live in meadows or mountains?

When is the best time to catch forest frogs?

The life span of forest frogs is generally 7-8 years, and they can be caught after growing for more than 2 years in the wild. However, when catching them, attention should be paid to the protection of young frogs and small 2-year-old frogs. Catching small frogs not only results in poor yields, but also reduces subsequent seed sources and damages the ecological environment, which can only lead to a vicious cycle.

The timing of catching forest frogs mainly depends on the date when forest frogs enter the river in large numbers. The period of forest frogs entering the river in large numbers is generally only a few nights. Generally, after forest frogs come down from the mountains, more than half of the frogs will enter the river in a short period of time. Therefore, preparations should be made to catch forest frogs during the period of concentrated river entry. If the timing of catching is seized, and the frog catching methods and tools are appropriate, more than half of the forest frogs can be caught in one or two nights. This centralized fishing is fast, saves labor and time, and reduces production costs.

The judgment of the concentrated entry period of forest frogs into the river can be judged from three aspects: date, weather, and phenology. ① The date of concentrated entry of forest frogs into the river. The first concentrated entry of forest frogs into the river in Jilin Province was in mid-to-late September. Generally, in mid-September, most forest frogs moved from the mountains to the creeks in the valleys, and only completely entered the water in late September to early October. ② The climatic conditions for the concentrated entry of forest frogs into the river. Rainfall is the primary condition for forest frogs to go down the mountain and into the river. From light rain to heavy rain, they can all promote forest frogs to go down the mountain and into the river, but moderate rain is most conducive to forest frogs going down the mountain and into the river. When it rains, the temperature is around 10℃, the water temperature is below 10℃, and there must be no strong winds, the phenomenon of large-scale concentrated entry of forest frogs into the river will occur. Sometimes, although it rains, the temperature is low and there is strong wind, forest frogs will not enter the river in large numbers. ③ Phenological characteristics can also determine the time when forest frogs go down the mountain and into the river. The dynamics of the coleopteran insect ladybug can be used as a phenological basis for forest frogs to go down the mountain and into the river. A few hours before it rains, a large number of ladybugs gather together to move around. This is a precursor sign of rainfall and also a phenological characteristic of forest frogs moving down the mountain and into the river.

In winter, forest frogs go to the river to hibernate. Buy some plastic sheeting and surround the river bank. Dig 20-centimeter holes every 10 meters or so. This way, when the forest frogs jump from the woods to the river, they will be blocked by the plastic sheeting and cannot jump into the river. They will jump back and forth along the river bank and slowly fall into your hole, and you can pick them up.

Using plastic walls to intercept and catch frogs is efficient, saves labor and time, and is an effective method of catching frogs that can be widely adopted.

Does the wood frog live mainly in meadows or mountains?

Seasonal. Now they are in the mountains, because there are mountains, grass, forests, rainwater and delicious food in the mountains. They start to go down the mountains around the Mid-Autumn Festival in October, because there are no more delicious things to eat in the mountains. Winter is coming, and they need to hibernate in the river. They start to go down the mountains every time it rains around the Mid-Autumn Festival, because in that way, they jump up without rubbing their bellies, and have more mother spores. After processing, its oil is an expensive and top-grade product. Snow frog. The main production area of ​​forest frogs is Tonghua area, and there are grasses in the rivers around the Ji'an mountain area.

The Northeast Forest Frog's ability to adapt to different environments provides a good domestication foundation for fully artificial breeding of this animal. But it also reminds breeders that they must pay great attention to the three biological needs of the forest frog. Otherwise, the migration behavior of the forest frog will not be stopped. If the forest frog is forced to stay in an unsuitable environment due to the obstruction of the breeding circle, a severe stress reaction will be inevitable, and it is not surprising that the resulting weak and sick mortality rate remains high.

How many days can a forest frog go hungry?

Wood frogs generally eat insects and are carnivorous animals.

However, forest frogs hibernate in winter and do not need to be fed. They will wake up when the weather gets warmer, so there is no such thing as starving to death. If you raise forest frogs at home, just feed them normally.

4. When breeding forest frogs, what should we pay attention to in the living environment?

Chinese forest frog (also known as Hash ant) ​​is a precious amphibian. The oviduct of female forest frogs is called "bullfrog oil", which is a precious tonic and health product. Chinese forest frogs are tender and delicious. They are not only delicious food at banquets, but also frog oil and forest frog series products are in high demand in the sales markets around the world and are favored by customers.

Two years of breeding practice experience has proved that artificial breeding of forest frogs is a high-efficiency industrial chain with low capital investment, high returns, and great development prospects for making a fortune in mountainous and hilly areas.

1. Sealing ditches to raise frogs

The Chinese forest frog is an amphibian that lives in the forest in summer and lives a completely terrestrial life. It spends the winter in the water. Therefore, it is necessary to conduct scientific investigation and selection of the frog breeding site.

1. Landform and topography

Frog farms are usually built with mountains on both sides and a valley in the middle, which is what farmers often call "two mountains and a valley". If the environment is spacious, it must be more than 150-200 meters wide. The valley needs to have a large and concentrated relatively flat area for the construction of the breeding farm. The absolute height of the mountain is more than 100 meters, and a gentle slope is preferred.

2. Mountains and forests

The forest is the most important growth area for the wood frog, which lives in the forest for about 5 months a year. The forest types where the wood frog lives are mainly large-scale broad-leaved trees and mixed coniferous and broad-leaved forests.

The layers of the forest should be appropriate, that is, the shrub layer should be concentrated, the tree trunks should be close to each other, the light under the forest is dim, and the bush layer should be prosperous, so as to adjust the light and humidity under the forest: the woody plant layer and the dry leaf layer should be selected in areas with lush green plants and thick leaf layer, so as to provide sufficient food and a good living environment for the forest frog.

3. Water resources

Water resources are another key criterion for selecting a frog farm. There must be sufficient water during the dry season, that is, there must be one or more small mountain rivers in the farm that do not dry up in summer and often flow in winter. The bottom of the stream should be sand or mud. The water volume should not be too large or too small, generally 1-3 meters wide and 0.3-0.5 meters deep.

2. Selection and construction of breeding grounds

1. Selection of breeding grounds

The breeding ground is the place where forest frogs are bred. From laying eggs to growing into young frogs, all needs to be done in the breeding ground. The breeding ground should be built in the center of the entire frog farm. Choose a flat, large, sunny area for centralized construction. The breeding ground is required to be close to the river, and the river can be used for gravity irrigation. The soil layer is preferably clay soil with good water-locking properties. The breeding ground should be centralized rather than decentralized. In order to facilitate the fire-fighting and evacuation of tadpoles, multiple breeding grounds can be established in the breeding farm with a long valley, and they can be fed in sections to ensure the principle of breeding nearby and free-range breeding nearby. The breeding ground should be within 2,000 meters from the free-range farm to prevent long-distance transportation and cause the death of tadpoles.

(II) Construction of breeding grounds

The breeding farm is mainly composed of four types of goldfish tanks: egg-laying pool, incubation pool, feeding pool and metamorphosis pool. The first three types of goldfish tanks should be built in a centralized manner, metamorphosis pools should be effectively distributed in the frog farm, and sun-drying water storage pools should be built in areas with lower temperatures.

1. Egg-laying pool, incubation pool, and feeding pool. In order to make better use of the breeding ground and facilitate management, after experiments, these three types of fish tanks for goldfish can be uniformly built according to the standards of feeding pools. Each fish tank for goldfish is a square of 20-40 square meters, with a depth of 0.5 meters, a bottom width of 0.4-0.5 meters, and a top width of 0.3-0.4 meters. The entire pool ridge should be ladder-shaped. A safety pit with a hole of 50 cm below and a depth of about 0.3 cm is built in the pool to prevent water from stopping in the pool and tadpoles from dying. Fish tanks for goldfish should be built in parallel, and main ditches should be built between multiple rows of water tanks. Each fish tank for goldfish should have a top corner water inlet and outlet and a water inlet and outlet in the same direction, so that different water injection methods can be adopted according to different production stages.

During construction, care should be taken to prevent water seepage. You can use mud to fill the seams. In serious cases, you can use plastic film to cover the pool to lock in water, and then bury sand and stones on the surface of the pool to prevent the pool mud from polluting the egg mass. In some areas with low temperatures, one or more drying reservoirs should be built upstream and downstream of the breeding farm, so that the river can first pass through the drying reservoir to increase the temperature before being introduced into the breeding pool. The drying reservoir is also built according to the terrain, with a water depth of 0.3-0.4 meters and an area that can be large or small according to the standards, so that it can fully supply running water to the breeding pool.

2. Metamorphosis Pool

The metamorphosis pool is the place where tadpoles metamorphose successfully, and it also has the function of fire evacuation. Therefore, the metamorphosis pool should be located near the water in the frog farm, and evenly distributed to prevent the relative density of some parts from being too high when the young frogs enter the mountain. The metamorphosis pool should be built under the hillside in Chaoyang District as much as possible, because the temperature is low in spring and the sunny slope is more suitable for the growth and development of young frogs. The total area of ​​the metamorphosis pool is 25-30 square meters, and the depth of the pool is about 50 centimeters. The whole pool is in the shape of a bottom pot, that is, the pool stem has a certain inclination, which is conducive to the young frogs to go out of the water and into the mountain. Because the tadpoles in the metamorphosis period breathe a lot, a lot of water needs to be injected to maintain the oxygen content and the cleanliness of the water surface. Therefore, when building a metamorphosis pool, a place with water storage should be selected.

3. Feeding method

The feeding of tadpoles is directly related to the growth and development of tadpoles and the quality of metamorphosis of young frogs.

(I) Types and processing of feed. Feed is divided into concentrated feed and roughage. Concentrated feed mainly includes corn flour, bean cake powder, bran, etc., while roughage mainly includes tender stems and leaves of various plants, such as dandelion, wormwood, etc. (except harmful ones). The production process of concentrated feed mainly includes corn flour, bean cake, bran in a ratio of 3:1:1, appropriately processing into a small amount of feed, mixing evenly, boiling into a paste, cooling and feeding. The production process of roughage mainly includes processing tender stems and leaves into 2-3 cm segments, then boiling and cooling for storage.

(ii) Spreading of bait. Spread the boiled and cooled concentrated feed in the shallow water at the edge to facilitate tadpoles to eat. Spreading method: Use a 1-meter-long wormwood branch, etc., stick the bait on it, spread it into the water, let it float on the surface of the river, or set it up on both sides to fix it. This is conducive to the tadpoles to eat the feed evenly, and can also increase the utilization rate of concentrated feed and avoid water pollution. You can also use a narrow wooden board with a width of 2 cm, a thickness of 1 cm, and a length of 1 meter, which has a better effect.

The amount of bait to be fed should be determined according to the different growth stages of tadpoles: in the early stage of tadpoles, no bait is required for about a week; around 7-10 days old, it is sufficient to feed once in the morning; 10-25 days old, feed once in the morning and at noon; around 25-35 days, the appetite is large, and during the peak period, feed once in the morning, afternoon, and at noon. There is no established standard for the amount of bait at this stage. It can be fed appropriately according to the number of tadpoles, with a little leftover each time. At around 35 days old, the appetite of every 10,000 tadpoles can reach 2-3KG. Tadpoles enter the metamorphosis period at 40 days old and have basically stopped eating. Since the growth rate of tadpoles is different, the actual production process must be carefully observed, and the feeding method and feeding must be mastered to prevent insufficient bait or excess production.

In addition, the byproduct (body) of the frog after oil extraction is crushed and processed into a good concentrated feed. Feeding method: Mix the processed concentrated feed powder with a small amount of corn flour and vegetables and feed it in the above way.

(III) Water injection technology

During the tadpole stage, it is necessary to ensure that there is sufficient water in the pond, so properly mastering the water injection technique is a key technical issue in tadpole feeding.

In the early stage of tadpoles, the temperature is low and the excess air coefficient is small, so the water flow should be through the sun-drying reservoir, the main ditch, and then the water should be infiltrated and discharged in the same direction as the fish tank for goldfish to ensure that the water temperature is relatively stable with the water in the pool. In the evening or rainy days, the amount of water should be increased to make the water level reach about 50 cm, which has the effect of heat insulation and preventing freezing. In the late stage of tadpole growth (after 30 days of age), the temperature gradually rises and the tadpole oxygen consumption increases. Therefore, the diagonal watering method should be adopted to increase the amount of water and increase the water change rate of the fish tank, which can not only reduce the temperature, but also keep the water clean and increase the oxygen content.

4. Free-range technology

After tadpoles metamorphose, they should be evenly dispersed in the breeding farm to avoid excessive density in some areas after the froglets are born, which will lead to the death of a large number of froglets. Therefore, when the tadpoles are 40 days old, they should be manually dispersed to the metamorphosis pool, with a density of about 5,000 per square meter of the metamorphosis pool, and about 50,000 tadpoles can be raised per mu of breeding farm. After the tadpoles are dispersed to the metamorphosis pool, they should be carefully cared for to prevent them from being knocked down by landslides and resolutely prevent damage from enemies. At the same time, they should continue to feed a small amount of bait to ensure sufficient water and keep the water clean; in areas with low temperatures, the surrounding sunshade branches can be removed to increase sunlight. Or use plastic film to put on the bottom to increase the temperature.

5. Wintering Technology

Like natural frogs, most of the artificially bred frogs spend the winter in water. Since the number of artificially bred frogs far exceeds the number of natural frogs, the natural conditions of rivers cannot fully meet the needs of breeding frogs, and artificial wintering sites for frogs need to be built. First, natural riverbanks should be arranged. In the deep water areas of natural riverbanks, they should be appropriately strengthened, widened, and expanded. Rivers with many forks should be repaired and merged to make rivers centralized and have sufficient water so that frogs can spend the winter safely. Some deep water areas have fewer natural shelters, so it is necessary to add shelters such as straw bales and stones. Second, in areas where frogs are concentrated, small and medium-sized water conservancy projects should be built on one side of the river, with a water storage depth of more than 1.5 meters. Straw bales, stones and other shelters should also be added for frogs to spend the winter. The artificial water conservancy project can adopt the release method to allow frogs to freely find a place to spend the winter. You can also use the cage method, put some grass in the cage as a cover, then put the forest frog in, and put it in the wintering pond.

When the wood frog spends the winter in a water conservancy project, the following issues should be noted: First, the water volume of the wintering river should be observed, especially in January and February of the second year, when the water volume is low. Frequent inspections should be made to avoid freezing and water shortages in the river basins, which may cause the wood frog to freeze to death. Second, some water conservancy projects are turbid water areas, so air vents should be opened frequently to ensure sufficient air for the wood frog. Third, pay attention to avoid harm from predators such as weasels and rodents.

6. Fishing Technology

Every autumn, when forest frogs grow large and fat, and their frog oil is cost-effective and of high economic value, they flock out of the mountains and into rivers, making this the best time to catch forest frogs.

At present, the main capture methods of artificially cultivated forest frogs are the film interception method and the jar capture method. These two methods have a high capture rate, little damage to forest frogs, and are simple and low-cost. In addition, other methods such as turning over stones, net fishing, and grass luring can be used for capture.

(1) The plastic film interception method refers to the method of setting up plastic film walls on the route of the frogs out of the mountains to block the capture. At the edge of the selected forest, use plastic film to surround a 1.5-meter-high wall with a 45-60° angle inward (the side where the frogs come out of the mountains), tamp the bottom with soil, and clear a 0.5-1-meter-wide flat path inside the wall to cut a 50-centimeter section. In the continuous rainy weather from mid-to-late September to early October, many frogs can be captured in the section.

(2) The jar method is to use willow branches, elm strips, etc. to make an iron cage in the shape of a fish pond. It is slightly larger than a fish pond. At the end of August every year, an inverted eight-shaped jar mouth should be built in an area with a large slope and fast flow rate. The jar should be installed in mid-to-late September, and a large number of forest frogs can be caught.

Regardless of the method used, it is necessary to minimize damage to forest frogs and make careful selections, leaving a certain amount of breeding frogs for separate storage. Immature frogs should be quickly sent to the wintering grounds, and mature commercial frogs should be sold as soon as possible.

Generally, suitable living environments are some relatively humid low-lying areas, and there should be a lot of weeds or trees around them to block the view. This way, they can be raised and are not prone to getting sick. They can also reproduce the next generation. You can prepare some food to increase the growth rate.

First of all, you should choose to breed in the mountains, choose those forests with dense trees and concentrated shrubs. In addition, the light source in this forest should be dim, and the humidity and ecosystem should be relatively good. Secondly, you should choose a place with abundant water resources, relatively clean water and no pollution, so that the forest frog can grow better.

First of all, it must be raised in the mountains and forests, and it must be exposed to sunlight at ordinary times. It must be located in an area with mountains on both sides and a low-lying area in the middle. The altitude must be maintained at more than 100 meters, and the slope should not be too steep. There must be abundant water resources, there must be river water in winter, and the stream must have a mud bottom.

It is best to choose a place with dense forests and sufficient water. Drainage holes and drainage channels should also be built in the farm. The breeding area should be very large, and there should be a wintering pond. The stagnant water should be cleaned up in time, and disinfection should be carried out regularly to prevent pests such as rodents and snakes. Anti-escape measures should be taken, and shelters should be built in the pool. Shading should be done so that the forest frog can grow better.