translate English to French: Calving rates can range from 35-100% (McHugh 1958; Meagher 1973; Lott 1979; Lott and Galland 1987; Kirkpatrick et al.
100 (McHugh, 1958; Meagher, 1973; Lott, 1979; Lott et Galland, 1987; Kirkpatrick et al., 1993).