A newborn calf, kid, or lamb needs milk or colostrum in relatively small, frequent amounts in its first days — trying to hand-feed with an oversized bottle makes it harder to control the amount and pace of feeding, and wastes milk if you're only feeding a small volume at a time. The 0.5L bottle is sized specifically for that early stage, giving you precise control over smaller feeding volumes without an oversized bottle that's awkward to handle for either you or the newborn.
This is especially useful for orphaned or rejected newborns needing full hand-rearing, or for supplementing a mother's own feeding in the first critical days when colostrum intake matters most for the animal's immune development. As the animal grows and needs larger feeding volumes, our 2.5L Feeding Bottle is the natural next step up.