EFFECTS OF SYNTHETIC LH-RH GIVEN BEFORE AND AFTER THE NATURAL PLASMA LH RELEASE AT OESTROUS IN THE SHEEP J. P. FOSTER, G. BALL and D. B. CRIGHTON Ann. Biol. anim. Bioch. Biophys., 16 2 (1976) 167 DOI: 10.1051/rnd:19760227