Enery evaluation of fresh grass in the diets of lactation dairy cows

Abstract

The discrepancy between the estimated feeding value of fresh grass and the output per kg grass in terms of milk and maintenance was studies with grass-fed dairy cows. It was concluded that energy input from grass and energy output in milk production were significantly different. It was futhermore concluded that the maintenance requirements of lactating dairy cows fed grass-based diets are probably higher than the currently used values.