Symptoms and control of six common diseases of forest frog

1. Red leg disease

The disease is a common disease of tadpoles, young and adult frogs, also known as septicemia. The pathogens are gram-negative bacteria such as Aeromonas hydrophila and acinetobacter calcoaceticus. The disease can occur all the year round, with fast transmission and high mortality. The main cause of the disease is that the pool water is not clean, the feeding density is too high, and the frog body is caused by trauma.

Individuals with symptoms are generally lethargic, with reduced mobility, often latent in the water, unwilling to move, do not eat, abdominal swelling, and bloody mucus in the mouth and anus. In the early stage of the disease, the toe tip of the hindlimb was red and swollen, with bleeding spots, which quickly spread to the whole hindlimb. Autopsy showed that there was a large amount of ascites in the abdominal cavity, enlargement of liver, spleen, kidney and bleeding spots, gastrointestinal congestion and mucus.

The prevention and control method changes the water regularly, maintains the water quality, reasonably controls the breeding density, feeds regularly and quantitatively, finds the sick individual, separates and treats the diseased frog in time, prevents the spread; soaks the diseased frog with 3% salt for 20 minutes, disinfects the whole pond with chloramphenicol, and the water concentration reaches 10X10-6, once a day for three consecutive days. Add sulfadiazine to the diet and add 1-2 grams per kilogram of food for three consecutive days.

2. Skin mycosis

The pathogen is water mold, which is mainly parasitic on the skin injury site of the tadpole body surface. the bacteria invade from the skin wound and gradually go deep into the muscle. at the same time, the mycelium of the pathogen grows outward into cotton-like hyphae visible to the naked eye, and gradually spreads around from the wound, which makes the tadpole swim slowly, it is difficult to eat, and finally leads to death.

The prevention and cure method is smeared with 10% purple potion.

3. Bubble disease

The disease is a common disease of tadpoles, timely diagnosis and treatment, it is easy to cure, not timely treatment, will cause a large number of deaths. The cause of the disease is mainly because the phytoplankton in the water produce a large amount of oxygen through photosynthesis under strong light conditions, resulting in the excessive saturation of dissolved oxygen in the water and the formation of tadpoles swallowing a large number of air bubbles in the process of mobile feeding.

Symptoms of the disease tadpoles full of gas in the intestines, the body expansion, swimming on the surface of the water, serious, the expansion of bubbles in the body hinder their normal blood circulation, tadpoles will soon die. Autopsy showed intestinal wall congestion.

Prevention and treatment methods frequently observe the water quality of the tadpole pond, frequently inject new water to prevent too many plants in the water; the individual is separated immediately, put it in clear water for 1-2 days, and do not feed, so that the gas in the body is gradually balanced, thus the air bubbles disappear. In the future, less cooked fermented corn (2315,-8.00,-0.34%) powder will be fed, and it will be cured in a few days. Salt can also be added to the pond for treatment, generally adding 15 grams of salt per cubic meter of water.

4. Rotifer disease

Symptom tadpoles are parasitized by a large number of rotifers, loss of appetite, difficulty breathing, often swimming alone, slow movement, not timely treatment, will cause a large number of deaths. Most of them occur in dense pools.

The disease can be avoided by reducing the breeding density and expanding the activity space of tadpoles. At the initial stage of the disease, the mixture of copper sulfate and ferrous sulfate can be used to sprinkle the whole pool, with 0.5 grams of copper sulfate and 0.2 grams of ferrous sulfate per cubic meter of water.

5. Skin rot

At the beginning of the disease, the frog's head skin loses luster and white patterns appear, then the epidermis falls off, exposing the dorsal muscles, and then extends to the entire trunk and back, the pupil appears granular protuberance, begins to show black, and finally the whole eye is white, like to lurk in the dark, and scratch the affected place from time to time, mixed with the phenomenon of bleeding.

Prevention and treatment of the disease is mainly due to long-term intake of a single diet, lack of vitamins, therefore, feeding should be diversified; appropriate addition of a variety of vitamins to ensure the supply of vitamins.

6. Enteritis

Tadpoles, young frogs and adult frogs can occur with strong infectivity and high mortality. Feeding unclean bait is easy to develop the disease. The pathogen is bacteria, and it is easy to cause this disease if the maggots fed are not disinfected properly.

The symptoms of diseased frogs often bow, the frog body is thin, the activity is abnormal, the food intake decreases sharply, the response is slow. However, tadpoles often float on the surface after onset of disease.

The prevention and control methods change the water regularly to keep the water fresh; do not feed moldy or deteriorated bait, properly add garlic, ginger and berberine to the bait; feed it regularly, quantitatively and at a fixed point to prevent the disease from being caused by overeating.