Tropical Grasslands (1980) Volume 14, 273280
RELATIONS BETWEEN SWARD CHARACTERISTICS AND ANIMAL PRODUCTION
L. 't MANNETJE and J.P. EBERSOHN
Grazing intake and animal production are related to herbage present, herbage allowance, legume content, canopy structure, digestibility, protein and mineral content and grazing behaviour. The predictive value of these variables is limited over a range of pasture conditions because intake depends on a complex interaction of these attributes and animal factors. Intake and animal production are asymptotically related to total dry matter in the pasture where the herbage consumed is a constant proportion of herbage present or allowance. Where the pasture contains a seasonally variable amount of dead material the relationship applies only to the green fraction of the pasture.