When can I see tadpoles?

In the season of alternating spring and summer, that is, from April to May, tadpoles can be seen.

When tadpoles develop to a certain period, some first grow hind limbs, and finally differentiate into five toes, and then grow forelimbs from gills, such as frogs. Some grow forelimbs first and then hind limbs, such as salamanders. With the tail gradually shrinking, the mouth also changed obviously, and gradually developed into a young man who can live on land.

Tadpoles have gills all their lives, such as tailless eels and salamanders, which live in water. During the metamorphosis of tadpoles into adults, the larvae of lungfish are slightly like tadpoles, so attention should be paid to finding tadpoles in the distribution area of lungfish. From the point of view of tadpoles, tadpoles are afraid of being eaten by golden toads, so they hide in their mothers' stomachs and become little toads.

Extended data:

Tadpole stage is an important stage for larval development. The quality of feeding and management in this period determines the growth and development of tadpoles and the number of deformed young frogs. The initial stage is 1 ~ 10 days after hatching, and high-protein liquid feed such as cooked egg yolk can be fed. Usage: Mash the cooked egg yolk, add water to dissolve it, filter it with 40 mesh gauze, and feed it at a fixed point, once in the morning and once in the evening, with the dosage of every 3000 1.

After feeding 1h, change the water in the culture pond to ensure the fresh water quality. After 5 ~ 6 days, you can feed the powdery feed. Make the powdery feed into a ball and put it on the feed tray.

The prophase of growth is 10~20d ~ 20 days. Although the digestive function of tadpoles is not strong enough in this period, they develop rapidly and need more food, so this period is also a key period affecting the survival rate of tadpoles.