The productivity of lactating dairy cows grazing white clover and supplemented with maize silage

Abstract

Ten grazing studies were undertaken in which lactating cows either grazed limited amounts of pure white clover (Trifolium repens cv. Haifa) alone, or were supplemented with 3.4-5.0 kg DM/cow day-1 of maize silage. Marginal returns to additional feeding were 0.58 and 1.03 kg of 4% fat-corrected milk/kg of total DM in spring/early summer (when cows were producing >20 kg milk/day) and autumn (when cows were producing