Influence of birth mass on incidence of dystocia in the Northern Transvaal Bushveld. Seven cow herds (Afrikaner, Hereford, Bonsmara, Simmentaler, Hereford x Afrikaner, Simmentaler x Afrikaner, Simmentaler x Hereford x Afrikaner), consisting of 40 animals each, were investigated from 1979…
Urea-supplemented wheat straw (UWS) was substituted stepwise by urea-ammoniated wheat straw (AWS) in diets fed to SA Mutton Merino ewes during late pregnancy and lactation. The experimental animals were fed ad libitum under zero grazing conditions over the last 8…
The influence of sire breed and breed genotype of dam on birth and weaning mass in calves of Afrikaner, Hereford, Simmentaler and Bonsmara cattle, as well as F1 and two- and three-breed rotational crosses between Afrikaner, Hereford and Simmentaler were…
Data of Dormer (n = 290) and SA Mutton Merino (n = 306) lambs, born by ewes which were observed continuously during lambing in 1989-1991, formed the basis of this investigation. Progeny of SA Mutton Merino ewes were heavier at…
Simmentaler cattle of the Highveld Region Development Institute were used in this study to determine the genetic and envi¬ronmental effects on birth mass, weaning mass and the mass gain from birth to weaning. During winter the animals were kept in…
