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LUTEINIZING HORMONE, OESTROGEN AND PROGESTERONE LEVELS IN PERIPHERAL SERUM OF ANOESTROUS AND CYCLIC EWES AS DETERMINED BY RADIOIMMUNOASSAY
Jugular vein blood was collected daily from four mature ewes throughout anoestrus and the first oestrous cycle of the breeding season until 4 days after the second oestrus. The levels of oestrogen, progesterone and LH were determined by radioimmunoassay. There were fluctuations in the LH level throughout most of the observed anoestrous period with a mean \ m=+-\ S.E. value of 2\m=.\3\ m=+-\ 0\m=.\9 ng/ml. High LH values of 20\m=.\0, 41\m=.\2and 137\m=.\5 ng/ml were observed in three ewes on Daydoi:10.1530/jrf.0.0430057 pmid:1168711 fatcat:bzyrxo7pdva5vjdez2hv32urcm