We usually lose a "Mama Cow" or two during the winter-early spring calving months and that leaves hungry mouths to bottle feed. This year my grandaughter, Olivia, has taken on feeding two oprhans. They think everyone who gets in the pen with them is their MOM! They are usually fed two- three times a day using a milk replacement from a 1/2 gallon baby bottle. The formula is increased as the calve grows