COMPARATIVE STUDY OF THE RELATIONSHIP BETWEEN THE QUANTITIES OF ACTIVE 3-β-HSDH AND 17-β-HSDH CELLS IN THE OVARIES OF MUSCOVY AND PEKING DUCKS A. DERAY and L. GOMOTAnn. Zootech., 24 1 (1975) 153DOI: https://doi.org/10.1051/animres:19750130