Control of the sexual cycles of nulliparous gilts by means of norethandrolone and prostaglandin analogue (ICI 80996) Françoise MARTINAT-BOTTE, A. LOCATELLI and P. MAULÉONAnn. Zootech., 26 3 (1977) 444DOI: https://doi.org/10.1051/animres:19770314