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Length of estrous cycle and size of corpus luteum in guinea pigs and sheep treated with progesterone at different days of the estrous cycle

Length of estrous cycle and size of corpus luteum in guinea pigs and sheep treated with progesterone at different days of the estrous cycle

American Journal of Veterinary Research 30(11): 1975-1978

ISSN/ISBN: 0002-9645

PMID: 5388316

Compared with the oestrous cycle of 16.3 days in 10 control guineapigs, cycle lengths of guineapigs (10 per group) treated with 2.5 mg progesterone//day on days 0-3 (0 = day of oestrus), 4-7, 8-11 or 12-15 averaged 14.8 (P <0.05), 16.5, 19.0 (P <0.05) and 22.1 days. The corresponding cycle lengths for the same numbers of control ewes and ewes treated with 25 mg//day were: 16.9, 9.9 (P <0.05), 15.6, 17.5 and 18.4 (P <0.05).

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Accession: 014545677

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