蝌蚪 技术（Tadpole technique）.doc

蝌蚪 技术（Tadpole technique） Tadpoles are larval frogs and toads, newts, salamanders and other amphibians animal. English Name: tadpole A tadpole, growth environment: Newly hatched tadpoles, physically weak, sensitive to external environment, small water flow, and no pollution, the water temperature is maintained at 20 to 29 DEG C, the pH value of 6 ~ 8, tadpoles not dark, growth in the dark, quiet place. Two, feeding tadpoles: Most of the tadpole is through the mouth into the horny tooth column scraping algae, but if the water is some earthworms, beetles and other small animal carcasses, they also eat in. Some species of tadpoles not horny teeth, such as frogs, Microhyla heymonsi, to filter water plankton. In addition, CHIRIXALUS Eiffingeri tadpole o egg feeding, spawning regularly back feeding mother frog tadpoles. The food is not enough, there will be large tadpoles eat small tadpoles cannibalism phenomenon. If you are self feeding, then give them bread crumbs. If it is a natural pond, usually eat plankton in the water. Mosquito larvae, plankton, fish and insects etc.. Of course, can also throw a dry end, minced meat, fish, insects, aquatic insects, all kinds of bread crumbs...... Three, the development of tadpole metamorphosis: the metamorphosis of the order is: before and after limb development, to shorten the tail disappear, to destroy the intestinal gill lung development. After the completion of metamorphosis will become froglets from the water landing. Tadpoles are amphibians ontogeny in a primary stage, early tadpole body, round or oval shape like fish, with a lateral line organ. Because the channel has not yet appeared in the mouth, food intake can not after the eyes and nostrils; appear; sucker head, can be used as adsorbent in water plants. On both sides of the head with external gills, with respiratory function. The tail is large and flat, segmented tail muscle, the sarcomere below a film shaped on the caudal fin, can help the tadpoles swimming in the water