Adult frogs mainly eat insects. Artificial farming can feed earthworms, fly maggots and compound feed. When the temperature dropped below 10℃, Shi Wa began to hibernate in underwater or weeds in water. When the temperature rises above 10℃, hibernation ends and feeding activities begin.
The hibernation period in Shi Wa is generally 1 1 to February of the following year. During hibernation, we should pay attention to the following points: control the water level, prevent the sudden change of pool water temperature, cover the pool surface to help the water temperature rise, and thicken the leaves at the bottom of the pool to facilitate hibernation.
Frog eggs can't hatch in the soil pool, in case the frog eggs fall to the bottom of the pool and are covered with soil, resulting in embryo death. Incubation pool area should not be too large, generally 4 ~ 5m2. The pool depth is 80cm, and the water level is controlled at 70cm. The spawning density is about per square meter 1000. Due to the influence of water temperature and weather, the incubation time is slightly different, the weather is good, the incubation speed is fast, and vice versa. Tadpoles usually hatch in 2 ~ 3 days.
The newly hatched tadpoles are small and tongue-shaped, and after 3 to 5 days, they become tadpoles with big heads and small tails. The newly hatched tadpoles are afraid of violent swinging and try to keep the hatching environment quiet. When the feed is full of nutrition and the water temperature is 19 ~ 2 1℃, tadpoles grow their front legs in about 40 days, and metamorphosis is completed in more than 70 days.
Extended data:
First, the morphological characteristics of stone mussels
Shi Wa has a flat figure, a small head and a wide bald mouth, which is quite different from ordinary frogs. Eyes protruding, facing the light at night, shining like a night pearl. The forelimbs are short and thick, and the hind limbs are long and thick, with webbed toes. Shi Wa has several body colors, and the most common color is tan. Adult frogs are generally 10 ~ 20 cm long and weigh 250 ~ 350 g, and the largest frog can reach 500 g. When the bait is insufficient, the big frog will eat the little frog.
Second, the role of stone mussels
Used as a clear stew, with chopped green onion, pepper, salt, monosodium glutamate and other condiments, you can eat. The meat of China Rana chensinensis is tender and easily digested and absorbed by human body. Is suitable for people of all ages, especially the infirm and the elderly, and has high edible value. After cooking, it can release a lot of nitrogen-containing extracts such as myosin and amino acids, so it tastes delicious.
References:
Baidu Encyclopedia-Shibang