大熊猫胎儿——在宫内发育123天
<正>雌性大熊猫体重约100 kg,但所产胎儿仅100 g左右,只有母体体重的千分之一。这是因为大熊猫胚胎延迟着床,即受孕后,受精卵在子宫内呈游离状态,直到后期才开始着床发育。受精卵着床
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Main Author: | 张金国 |
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Format: | Article |
Language: | zho |
Published: |
Editorial Department of Chinese Journal of Wildlife
2010-01-01
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Series: | 野生动物学报 |
Online Access: | http://ysdw.nefu.edu.cn/thesisDetails#10.19711/j.cnki.issn2310-1490.2010.04.018 |
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