Preruminant calf nutrition.

This article has attempted to give the reader an outline of the principles involved in preruminant calf nutrition together with a practical understanding of milk replacers and their use for raising calves. While the nutrient requirements of the preruminant calf are reasonably well understood, the complex interactions occurring when attempting to replace milk proteins with high levels of nonmilk proteins are clearly not well understood. Further, the management and environmental interactions on nutrition are profound and far from elucidated.