Experience in feeding and management of juvenile stone frogs

Stone silicon breeding is still very common in our country. People who have eaten stone silicon all know that its meat is very delicious, so wild stone silicon is far from meeting people's needs, and it is best not to kill wild animals at will. will lead to the entire ecological balance of the environment.

Experience in feeding and management of juvenile stone frogs

After 70 days of metamorphosis, tadpoles grow limbs and become young stone frogs. From aquatic to amphibious, moved to the young frog pond to raise. The water depth of the baby frog pond is 50 meters and 60 centimeters, and there are 350 stone frogs per square meter of water. Add fresh baits such as water earthworms, fly maggots and yellow powder insects, and can also be properly mixed with compound bait for feeding. Feed them once in the morning and once in the evening. You can also install a moth trap lamp on the water surface and lure moths as frog bait at night. As the frog grows up, the jumping ability increases, and the stocking density decreases gradually, and it is constantly moved to be raised in the frog pond.

The living habits of stone frog

Stone frog belongs to running water life type. It is often inhabited in the stream with slow flow in the mountain area or in the puddle of the stream, where both sides of the stream are rich in vegetation. They rarely leave the water, and their body color often adapts to their living environment. The second sexual characteristics develop towards a strong embrace, with large males, extremely strong forelimbs and well-developed marital thorns, which have a lot to do with reproductive characteristics. when spawning, males and males must lay their eggs in a stream hit by running water. during mating, the male hugs the female forcefully and strengthens the male's fixation with the help of abdominal spines so that they are not washed away by the current.

The stone frog has an internal vocal sac, the sound is low and turbid, and the male call is "goo goo". The female responds with a "click" sound. Stone frogs have the habit of living in groups and foraging at night, often several or dozens of them live together. In a quiet and suitable environment, stone frogs also come out to look for food during the day, and the peak period of activity is at night. Stone frog is good at jumping and climbing, usually the activity is weak and stable, in the peak period of breeding, frequent activities, with singing and hugging and other behaviors.

Stone frogs like to eat active animals and generally do not eat dead or immobile food. in the natural state, stone frogs eat a wide range of food, in addition to insects, centipedes, spiders, horse land, snails, snails, clams, earthworms, shrimp, but also prey on crabs, miscellaneous fish, Loach, young snakes and small birds. Stone frogs in different areas have different feeding habits due to the different bait that the environment can provide. Stone frogs generally swallow 9% of their body weight in nature, sometimes up to 12.8%.

Breeding techniques of stone frog

Stone frog is not only a national protected animal, but also a delicacy on people's dinner table. Artificial breeding of stone frog is not only of great significance to protect the ecological environment, but also has high economic benefits. Artificial reproduction is the key to successful breeding of stone frog. The key technologies are introduced as follows.

1. The selection of breeding frogs

The spawning and hatching season of stone frog is from March to October, and April to June is the peak spawning period. in order to improve the spawning rate and hatching rate, we must make preparations for breeding frog selection, breeding, spawning and hatching after hibernation resuscitation and before breeding. The selection of breeding frogs is the basis for doing a good job of artificial reproduction. After hibernation and before spring reproduction, adult frogs are comprehensively examined and classified. Adult frogs with strong body, smooth skin, good development, no disability, no damage and sexual maturity are reserved for breeding: generally, the second-year-old female frogs weigh more than 150 grams and the males can be used for breeding. The frogs that laid eggs for the first time are less, and the frogs that have laid one or two times have more eggs. Old frogs with good quality and large size lay more eggs, but the quality is not good and the fertilization rate is not high. Generally speaking, they should not be selected as breeding frogs. Male frogs are required to be strong, good at jumping, and strong with bare skin and legs. Female frogs require short and thick legs, abdominal drum and bright skin. 2Mel 3-year-old frogs have strong fecundity.

2. Breeding of frogs.

Air temperature, water temperature, water quality, light, bait and environmental conditions have a great influence on the health and reproduction of frogs. Whether or not the living environment directly affects the number of eggs laid by mating, the fertilization rate, the egg hatching rate and the survival rate of tadpoles. According to the habits of the thorn-breasted frog, the frog pond should be built in a quiet and weak light place, with a height of 0.8 meters and an area of 6 square meters. The bottom of the pond is covered with pebbles and stones, and hidden by water grass, it is beneficial for frogs to inhabit and lay eggs. The water and land area in the pond is 2:1, which requires that the water capacity of the pond is relatively stable, the water depth is 8 to 10 cm, the water quality is fresh, the pH value is 6.5 to 8, and there are no harmful parasites. Generally, the water is changed once a day during the peak feeding season, and during the off-season, the water is changed once every 2 to 3 days. 20 frogs are released in each pond and raised in groups according to the ratio of male and female at 1:1. The breeding frogs selected and kept must be prepared for group breeding before hibernation or spring breeding.

Prevention and treatment of common diseases of stone frog

1. Wheel pest

[symptoms] there are bluish gray spots on the surface of the body and Gills, or whitening of the tail, which is formed by mucus secreted by diseased tadpoles and spherical dead epidermis. The disease is most prevalent from May to August, and mostly occurs in pools with high density and slow development of tadpoles. When parasitic on the Gills, it makes it difficult to breathe, float on the surface, and then die in large numbers.

[prevention and treatment methods] before ① stocking, the pond was thoroughly cleaned and disinfected with polyvitamin copper iodine, the stocking density was controlled, and the water quality was always kept fresh, which could prevent the occurrence of disease. ② can be treated with 0.5ppm copper sulfate and 0.2ppm ferrous sulfate mixture (the total concentration is sprinkled in the whole pool of 0.7ppm)

2. Bubble disease

[symptoms] the abdomen expands like a ball, loses balance and floats on the water surface. If it is not rescued in time, it will cause death. It often occurs in the cement pool with high water temperature and high nitrogen content in the pool water, so that the gas exchange of tadpoles is out of balance. The blood vessels of intestine, Gill and skin contain excessive gas.

[prevention and control method] the most effective way for ① is to change water. Firstly, diseased tadpoles are transferred to fresh water and temporarily reared for 1-2 days. Keep plenty of running water during the high temperature of ②.

3. Water mildew

[symptoms] the hyphae of water mold on the body surface of diseased tadpoles multiply and grow in large numbers, such as old cotton-like white hair, which often swims slowly on the edge of the pool. When causing any trauma, accompanied by tadpoles crowded, hydrolytic enzymes, so that the wound is difficult to heal, so that tadpoles restless, loss of appetite, exhaustion and death, the disease is the most popular in late winter and early spring.

[prevention and treatment methods] ① was thoroughly cleaned and disinfected with povidone copper iodine. The operation of ② net and transfer should be as careful as possible so as not to injure the tadpoles. ③ was treated with erythromycin 0.05~0.01ppm and sprinkled all over the pool. ④ was sprinkled with 1.4 ~ 3ppm gallnut in the whole pool. ⑤ was immersed in 2/200000 potassium permanganate solution for 30 minutes.

In the process of cultivating stone silicon, it is very important for disease prevention. Only when the disease is controlled well, the profit of stone silicon culture can be better improved. Therefore, first of all, it is very necessary to master the living habits of stone silicon, and then to master the prevention and treatment of some common diseases.