Morphology, habits and breeding methods of Oriental Newt, also known as "Chinese Fire Dragon"

Oriental salamander is a good material for studying embryonic development, and it can also be used as an ornamental animal. It belongs to amphibia, cauda, salamander family and salamander genus. It is distributed in Fujian, Jiangxi, Zhejiang, Jiangsu, Anhui, Hunan, Hubei and Henan provinces. So what are the morphology, habits and breeding methods of oriental salamanders?

I. the morphology and habits of oriental salamanders

1. Oriental salamander is divided into five parts: head, neck, torso, limbs and tail, with a total adult length of 6 mi 8 cm. The skin is bare, the cloth has nevoid grains, the back is black or grayish black, there are irregular orange-red plaques on the ventral side, the head is flat, the front is a broad mouth, and there are eight-shaped plough teeth at the top of the mouth, which is an important basis for classification. The neck is not obvious, the body is flatter, the limbs are more developed, four fingers of the forelimb, five toes of the hindlimb, no web between the fingers (toes). The tail is flat and long. Crawl on all fours under the water and on land, and bend the torso and tail in the water.

2. Swim while swinging. The male is slightly smaller, lively and sensitive, and the female is enlarged in the abdomen and slow in movement; the male cloacal foramen is raised, especially in the reproductive season, with obvious villous papillae, even protruding outward, while the female cloacal foramen is flat, the pore fissure is short, and there is no obvious papillae. Oriental salamanders like to live in foothills or slow-flowing mountain streams. The water here is relatively clear, often with water plants, and the water quality is neutral.

3. Oriental salamanders do not have strict hibernation and dormancy. From spring to autumn, due to the suitable temperature, they live very actively in the water, often at the bottom of the water and under water plants, and have to swim out of the water to breathe from time to time. After the beginning of winter, it is hidden in the wet grottoes or crevices at the bottom of the water, and generally does not jump out of the water surface. When the water dries up or there is thin ice on the water surface, it often lies among the water plants, under the stones, or even moves to the land, and spends the winter in tree holes or cracks in the ground. Molting occurs in the process of growth.

Second, the reproduction of oriental salamander

1. The spawning period of Oriental salamander is generally from March to July, and May is the peak spawning period. Indoor feeding is earlier than wild spawning to February-June, and the peak spawning period is April. The optimum temperature for spawning is 16 mi 25 degrees. The duration of each female laying eggs in a year is about one month, and some females who are as long as 4 months usually lay 2 eggs a day, with a maximum of 27 eggs. In the whole spawning season, 100 eggs can be laid, with a maximum of 283 eggs.

2. Amphibians are generally fertilized in vitro, and salamanders are fertilized in vivo. Male salamanders are particularly active in courtship before ejaculation, constantly swimming around female salamanders, sometimes touching the female cloaca hole with the snout, and sometimes bending the tail forward and shaking rapidly in front of the female salamander. This courtship action is repeated many times and can last for several hours. after successful courtship, the female salamander follows the male salamander.

All right, these are the breeding methods of oriental salamanders brought by the editor of Tuliu.com. I believe that if you read it, everyone will understand. Friends who like it welcome to follow Tuliu.com. I'll see you next time.