OBSERVATIONS ON THE TASMANIAN DEVIL SARCOPHILUS-HARRISII MARSUPIALIA DASYURIDAE PART 2 REPRODUCTION BREEDING AND GROWTH OF POUCH YOUNG
OBSERVATIONS ON THE TASMANIAN DEVIL SARCOPHILUS-HARRISII MARSUPIALIA DASYURIDAE PART 2 REPRODUCTION BREEDING AND GROWTH OF POUCH YOUNG
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DOI：
10.1071/zo9700063
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发表时间：
1970-01-01
影响因子：
0.8
通讯作者：
GUILER E R
中科院分区：
文献类型：
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作者：
GUILER E R
袋獾S. harrisii为多卵单情型，未发现胚胎滞育现象，69窝的平均育儿囊数为2.95个。一窝幼仔的数量随母亲的年龄而变化。出生的幼仔比育儿袋容纳的要多。繁殖时间每年都不一样，交配发生在三月。繁殖雌性的百分比每年都有变化，并且从一个地方到另一个地方，在一个地区被发现低至31%。魔鬼有很高的繁殖潜力，因为在幼鸟阶段没有损失。这一点被招募青少年入伍的情况所抵消。发现发生假性前列腺炎。囊袋幼鱼和成虫的性比均偏向雌性。描述了年轻人的发展和成长。
The Tasmanian devil, S. harrisii, is polyovular and monoestrus and embryonic diapause was not found. The mean number of pouch young for 69 litters was found to be 2.95. The number of young in a litter varies with the age of the mother. More young are born than can be accommodated in the pouch. The time of breeding varies from year to year, mating taking place in March. The percentage of breeding females varies annually as well as from place to place, being found to be as low as 31 % in one area. The devil has a high reproductive potential because there are no losses at the pouch-young stage. This is offset by poor recruitment of juveniles into the population. Pseudopregnancy was found to occur. The sex ratio of both pouch young and adults favoured the female. The development and growth of the young is described.