Notes on Ovulation and Fertilisation in the Ferret
Notes on Ovulation and Fertilisation in the Ferret
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关于雪貂排卵和受精的注意事项
DOI：
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发表时间：
1934
期刊：
影响因子：
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通讯作者：
A. Walton
中科院分区：
文献类型：
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作者：
J. Hammond;A. Walton
1.雪貂通常在交配后30小时左右排卵。2.性交的平均持续时间约为2小时，但从1/4小时到3小时不等。没有证据表明短交配不如长交配繁殖力强。3.性交后36小时内，外阴仍然肿胀，但在性交后约60小时变得松弛，可能是因为没有雌激素。4.精子在交配后约3小时内到达子宫上部，但在此期间不到达卵巢囊。交配后6h，卵巢囊内可见精子。交配后10天，卵巢包膜和子宫内均未见精子。5.试图确定精子在雌性体内受精的可能持续时间，但由于在雪貂中进行人工授精存在困难，因此没有得出决定性的结果。6.在雪貂中，卵子在排卵后仍能受精不超过30小时。从排卵后的18到30小时，只有一小部分的卵子仍然能够受精，在这个时候交配会产生很小的后代。
1. The ferret ovulates normally about 30 hours after coitus. 2. The average duration of coitus is about 2 hours but varies from ¼ hour to 3 hours. There was no evidence that short copulations were less fertile than long ones. 3. For 36 hours after coitus the vulva remains turgid, but becomes flaccid by about 60 hours after coitus, presumably from absence of oestrin. 4. Spermatozoa reach the upper part of the uterus within about 3 hours after coitus, but during this time do not reach the ovarian capsule. Spermatozoa were found in the ovarian capsule 6 hours after coitus. No spermatozoa were found in the ovarian capsule or uterus 10 days after coitus. 5. An attempt to determine the possible duration of fertilising capacity of the spermatozoa in the female tract was made, but no conclusive results were obtained owing to the difficulty of performing artificial insemination in the ferret. 6. In the ferret the ovum remains capable of fertilisation for not more than 30 hours after ovulation. From 18 to 30 hours after ovulation only a small proportion of the ova remain capable of fertilisation, and small litters are produced from matings made at this time.