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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

For 150 ewes, the duration of oestrus averaged 30.09 plus or minus 0.56 h (6-40 h); it was 25-33.30 h in 75% of ewes. Length of oestrous cycle averaged 17.6 days (10-28), and it was 16-18 days in 81.4% of ewes. For ewes inseminated 3, 12 and 26 h after the onset of oestrus, the NR rate to 1st ...

Cetinkaya, K.
Lalahan Zootekni Arastirma Enstitusu Dergisi, 1979, 19, 3-4, pp 103-120

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