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The concentrations of oestradiol-17β and progesterone in the blood were studied during natural oestrus, synchronized oestrus and the 1st oestrus after synchronized oestrus in Friesland, Chios, Serrai and Karagouniko sheep. During natural oestrus, significant variations in oestradiol-17β...

Kouskoura, T.; Kouimtzis, S.; Alexaki, E.; Smokovitis, A.
Reproduction in Domestic Animals, 1995, 30, 1, pp 8-13