A semi-solid animal feed block is provided to an animal as a feed supplementor as acomplete feed. The feed block is formed of a liquid binder containingdenatured wheatflour protein and sugar, and a nutrient mixture of at least one animal feedcomponent.The denatured protein and the sugar bind the nutrient mixture to form the semi-solidanimal feed block as a single mass. The nutrients may be formulated to promotedigestive tract development of a recently weaned livestock animal, such as apiglet.