Panda knowledge: the heroic mothers - the United States and the United States
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Artificial breeding of giant pandas, as a result of favorable conditions, the general life expectancy of 20 years of age, the longest 38 years old, female 4-5 year-old mature, child-bearing age in 10 years. In recent years, with the giant panda breeding research and the constant deepening of reference and high-tech, artificial semen, fertilization and nursery technology continuously improved so that the giant panda fertilization pregnancy rates, birth larvae, larval survival rate significantly higher. Such as the Chengdu Giant Panda Breeding Research Base of "Hero Mother" the United States and the United States, live a 21-year-old (died 1992), the communist 9 fetal 11 Aberdeen, survived 7; the United States and the United States庆庆daughter (born 1984) to 2001 has been producing 8 fetal 12 Aberdeen, larvae all survived, has created a miracle in the history of Giant Panda Breeding. At the same time, artificial insemination of giant pandas in the case of a greater chance of producing twins, in 1999 the Chengdu Giant Panda Breeding Research Base of Giant Panda keepers producing 3 fetal 5 Aberdeen, two pairs of twins. In 1980 -2000 Chengdu Giant Panda Breeding Base and Chengdu Zoo, together, a total of 40 artificial breeding of giant pandas child, born 61, survived for more than six months a total of 38. Built the world's largest artificial breeding of giant panda population, now the fourth generation. China (Wolong) to protect the giant panda research center of giant pandas reared in the middle 5 fetal 8 Aberdeen, of which two pairs of twins, a 3-birth (eventually survived 2), created the artificial breeding of giant pandas in a new record high yield. Giant Panda "庆庆" Can be seen here, to the giant panda to create a suitable environment, give full play to their own potential, they also may be a growing population. So far, the world's total of 14 research institutions in the success of the zoo or the giant panda breeding 150 births, 226 births in Aberdeen, 89 survived. Which only the United States abroad, Japan, Mexico
