Six non-lactating, bilaterally ovariectomized (OVX) Brahman×Hereford (F-1) cows (n=5)
and one OVX Hereford cow were used in a replicated 3×3 Latin square study. Each
experimental period was 7 days, with at least 48 h between different periods to minimize
any carry-over effects from the preceding treatment. Mean (±S.E.M.) age and BW
were 7.8±0.9 year and 604±9 kg, respectively. Cows were housed in pens (dry-lot) measuring
25.6m×9.6 m; and were fed a forage-based (Coastal Bermuda hay) diet ad libi
tum.