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Intravenous administration of progesterone and the onset of receptivity in female hamsters

✍ Scribed by Christine A. Lisciotto; Joseph F. DeBold


Book ID
118354608
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
544 KB
Volume
49
Category
Article
ISSN
0031-9384

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## Abstract Female hamsters maintained in groups of 4 to 12 animals continue to show four‐day ovulatory cycles. However, when placed with males on the evening of proestrus, only 40% of these grouped females mate. Ninety‐five per cent of females caged singly or in groups of two, mate in less than te