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The effects of luprostiol injections in early (days 5 to 9 of the oestrous cycle) and late (days 10 to 15 of the cycle in heifers and days 10 to 14 in cows) dioestrus on the injection to oestrus interval and pregnancy rates were examined after fixed time inseminations at 72 and 96 h after...

Alan, M.; Çoyan, K.; Aksoy, M.; Tekeli, T.; Ișik, K.; Sezen, S.
Tierärztliche Umschau, 1993, 48, 9, pp 587-590