Ruproteïenbehoeftes van agtien-maand-oud osse gedurende die afrondingsperiode
Eighteen month old Simmentaler steers with an initial body mass of 310 kg were divided into 8 comparable groups of l0 animals each. The performance of steers at crude protein levels of 9,1, 11,9 and 14,7% in a maize silage…
