断翅圈养白枕鹤的繁殖

Reproduction of the White-Naped Crane with Broken Wings

断翅白枕鹤通过选定配偶、隔离圈养，于１９８６年在无锡市锡惠公园动物园繁殖成功，至今已形成较大种群，并初步掌握了白枕鹤的繁殖规律．配对多年的白枕鹤繁殖季节逐年提早，二月底即可产卵．亲鹤自孵自育情况下，年产１窝，窝卵数为２枚，产卵间隔日为２～３ｄ，孵卵期为２８～３０ｄ．采取人工孵化或人工育雏的方法可缩短窝间隔时间，年产２～３窝，甚至４窝．人工孵化的关键是温度控制，人工育雏的关键是雏舍温度、卫生，雏鹤开食，饲料质量，日食量和疾病防治．

Reproduction of the white-naped crane with broken wings was met with success by mate selection and isolated raising at Zool Garden of Xihui Park (Wuxi city) in 1986.Up to now lots of the crane were developed and the breeding regularity for these cranes was investigated. With the reproducing season shifted to an earlier time, the mated cranes for several years can lay eggs at the end of February. At the natural conditions of hatching and rearing by itself, the crane lay a' brood of eggs (two eggs a brood) every year. The interval time of laying egg is two or three days. Its hatching period is 28～30 days. At the artificial conditions of hatching or raising for the young crane, the interval time between two broods can be shorten, and it produce two to three broods of eggs, or four broods of eggs. The key factor for the artificial hatching is controlling temperature and humiditys the key measures for rearing the young crane are the temperature and sanitation at the rearing room, initial feeding for young crane, feed quality, capacity for eating every day and disease control.