Diet selection and intake by cattle, goats and sheep was related to climatic factors by principal-component analysis. Digestibility of selected material and digestible organic matter intake per metabolic size (DOMI/kg W0.75) were significantly correlated to a principal component combining rainfall,…
The seasonal variation in diet selection and herbage intake of cattle and sheep and the effects on animal performance at various research centres are put into perspective, taking into consideration the annual rainfall and its distribution. The most important constraint…
This study was undertaken to determine the influence of three grazing pressures [high (HGP), medium (MGP) and low (LGP), corresponding to 30, 50 and 75 g available DM/kg BW/day, respectively] on the quality of herbage consumed by lambs grazing Lolium…
This study was undertaken to determine the influence of three grazing pressures [high (HGP), medium (MGP) and low (LGP), corresponding to 30, 50 and 75 g available DM/kg BW/day, respectively] on the performance of lambs grazing Lolium perenne and Dactylis…
Rumen fermentation was studied during three years in lactating Dorper and Merino ewes, supplemented daily with crude protein and/or energy via rumen fistulae on veld. Herbage, collected with oesophageally fistulated wethers, and maize meal were incubated in sacco in the…
