See that the feed is moving down into the trough properly. Remove any damp or moldy feeds and do not let the trough get empty. Moldy or damp feed can cause calves to go off feed, and they are likely to founder when they come back on feed. The same is true if the trough is allowed to remain empty for a time. Creep rations with more fiber than that supplied by corn usually are better, especially in purebred herds.
More fiber helps protect against founder.
Soybean hulls, corn gluten feed, wheat middlings, ground ear corn, oats, wheat bran or alfalfa meal can be substituted for part of the ground shelled corn to add bulk. Suckling calves make efficient use of whole oats and whole shelled corn. Whole oats alone were a satisfactory creep ration for calves in North Dakota State University trials. Ground milo can be substituted pound for pound for shelled corn. Ground wheat can replace up to 50 percent of the total grain in a creep ration.