Comparison of milk and grass composition from grazing Irish dairy herds with and without milk fat depression

Table 1 Estimated feeding rate and chemical composition of concentrate supplement offered to cows

Item	HMF^a	MMF^a	LMF^a
Estimated feeding rate (kg DM/cow/day)	2.3	2.8	2.7
DM (%)	89.5	89.5	90.1
Chemical composition (% of DM)
Crude protein	16.4	17.5	16.7
NDF	25.2	25.6	27.1
ADF	13.2	13.8	14.4
Ash	10.4	9.7	9.6
Starch	21.7	20.3	20.8
Oil—Ether extract	2.8	2.7	2.8

^aHMF (> 3.95% milk fat) = High milk fat herds, MMF (3.31 – 3.94% milk fat) = Medium milk fat herds, LMF = Low milk fat herds (< 3.30% milk fat)

ISSN: 2046-0481