Influence of protein supplementation of primiparous ewes during gestation on birth weight and perinatal mortality of lambs in the sudano-sahelian Cameroon A. Njoya, AC Ngo Tama and ND AwaAnn. Zootech., 44 Suppl. 1 (1995) 331DOI: https://doi.org/10.1051/animres:199505294