URINARY EXCRETION OF HYDROXYPROLINE AND ACID PHOSPHATASE IN RELATION TO EGG-SHELL FORMATION IN THE DOMESTIC FOWL K.-M.-L. MORRIS and T.-G. TAYLORAnn. Biol. anim. Bioch. Biophys., 10 Hors-série 2 (1970) 185-196DOI: https://doi.org/10.1051/rnd:19700616