In some studies, yeast supplementation did not alter BW
(Robinson, 1997) or BW change (Robinson and Garret,
1999), while in another study yeast supplementation
decreased BW loss in early lactation (Dann et al., 2000). In
the current experiment, cows consistently gained BW in the
course of the trial indicating a positive energy balance that
most likely arose from adequate DMI. As discussed earlier,
BW gain was higher in supplemented than control cows
suggesting a higher provision of energy for gain with
additive supplementation.