Ranidae (Rani DAE) animals, scientific name bullfrog. This solitary aquatic frog, named after its loud sound, is the largest frog in North America. Originated in several eastern States of the United States, and later spread to western States and other countries. Other large frogs are also called bullfrogs, such as the box-headed frog (R. adspersa or Pyxicephalas adspersa) in Africa, the tiger frog (R. tigrina) in India and the Ranidae in South America. Bullfrog has a green or brown body, a white to yellow abdomen and black stripes on its limbs. The body length is about 20 cm (8 inches) and the hind limbs are 25 cm (10 inch). Adults weigh more than 0.5 kg (1 lb). Often live in or near still water. Breeding in spring, eggs are laid in water. Tadpoles are green-brown with black spots. Tadpole stage duration 1? Three years, depending on the climatic conditions. Many bullfrogs can be eaten or used as experimental materials.

【 Morphological characteristics 】 The body shape is the same as that of the general frog, but the individual is larger, with the female frog being 20 cm long and the male frog 18 cm, and the largest individual can reach more than 2 kg. The head is wide and flat. Mouth position, nose sharp and round. The exophthalmos of the eyeball is divided into upper and lower parts, and the lower eyelid has a wrinkled instantaneous membrane to close the eyeball. The back is slightly rough and has fine leather edges. The limbs are stout, the forelimbs are short and webbed. Male individuals have an obvious gray tumor-like process on the inside of the first toe. The hind limbs are long and big, and the toes are webbed. Skin color changes with the living environment, usually green-brown on the back and limbs, with dark brown stripes on the back; The head and mouth are bright green; The ventral surface is white; The color below the larynx varies from male to female. Most females are white, gray or dark gray, and males are golden yellow. The song is very loud. It is named after Niu Jiao.

[Origin, production season] Native to North America. From 65438 to 0959, it was introduced into China inland from Cuba and Japan. At present, China mainly relies on aquaculture production, which is produced all over the country, mainly in Hunan, Jiangxi, Xinjiang, Sichuan, Hubei and other places. Commercial frogs are mainly in autumn and winter.

[Economic Value] Bullfrog is a valuable food with the advantages of fast growth, delicious taste, rich nutrition and high protein content. It can also be exported to earn foreign exchange. Its skin can also be tanned, and it can be used as medicine when it is dirty. Bullfrog grows fast and its meat is tender and delicious. It is a high-grade nutritious food with low fat and high protein. Frog skin can be made into high-grade leather, and its turf is thin, soft and tough, which is a high-grade wallet. Excellent raw materials for belts, ties, shoes, musical instruments and surgical lines. Frog viscera can be used as medicine, and frog oil can be used to make advanced lubricating oil.

Edible menu

Fried bullfrog with pickled pepper

Ingredients: 500g of bullfrog, 20g of green onion 1 50g, 200g of salad oil, 20g of cooking wine10g, 0g of pickled pepper10g, 10g of refined salt150g, 2g of green onion150g, monosodium glutamate and pickled pepper.

Production method: 1. The bullfrog is slaughtered, peeled and washed, cut into pieces, and starched with salt, pepper, dried bean powder and cooking wine. Soak red peppers, remove pedicels, remove seeds and cut into sections, wash green onions and cut into sections, and soak ginger in Kamikiri ginger rice. 2. Heat the oil in the wok to 70% heat and take the bullfrog out of the wok. Heat a little oil in a wok, add ginger rice and pickled pepper, stir-fry until fragrant, add bullfrog, cook wine, add monosodium glutamate and scallion, turn to a wok, and plate.

Saute bullfrog

Prepare a bullfrog, bamboo shoots and green peppers first. Kill the bullfrog and cut it into pieces. Boil it first, then throw it out (remove the blood) and pour a little oil into the pot. Add ginger slices and bullfrog. Stir fry and add green pepper and bamboo shoots. Just add a little yellow wine and half a spoonful of water to stir-fry less. Then add salt, monosodium glutamate, a little sugar and pepper. When the water level drops to half. Just add some starch and pour sesame oil out of the pot.

[injury]

Bullfrogs are natural enemies of amphibians.