Five risk factors (locomotion score, number of days of winter housing, mean milk yield, freestall base material, and herd size) were common to both hair loss and ulceration.
Mean milk yield was 38.9 kg/d and we observed an interaction between basal forage and added S and Mo, with yield being decreased in cows offered G+ but increased on C+.
Mean milk yield decreased in saline treated compared with that during the 1-wk period before treatment 7.4 and 19.1% during periods 1 (group B) and 2 (group A), respectively.
Three multiparous, ruminally and duodenally cannulated Holstein-Friesian milking cows (558 ± 14 kg BW) with a mean milk yield of 19.9 ± 1.4 kg/d in their 4th mo of lactation were fed a mixed diet of forage and concentrate at 100, 85, and 75% of ad libitum intake in a 3 × 3 Latin square design.
The optimum levels of supplementation in this trial were associated with a mean milk yield of 10.94 kg/cow/day for the cows on ML stover basal diet, and 10.84 kg/cow/day milk yield for those on OV hay basal diet.
Mean milk yield, milk composition and body weight change of treatment groups did not differ from those of the C group, although milk crude protein (CP) yield progressively increased with YC, and decreased with M, as the level of milk CP production of the cows increased.
