Patterns of circulating LH, FSH, prolactin and E2 17 β in the gilt during the follicular phase of the oestrus cycle Armelle PRUNIER, Sylvaine CAMOUS, J. P. RAVAULT and Françoise MARTINAT-BOTTEAnn. Zootech., 36 3 (1987) 303-304DOI: https://doi.org/10.1051/animres:19870319