—casein and whey. Casein makes up about 80
percent of total milk protein and acts as a
source of amino acid building blocks that the
calf can digest and turn into muscle,
connective tissue, skin, hair, hormones, and
enzymes and even form part of the structural
matrix of bones and teeth. Calves are able to
make good use of that species-specific protein
supply to fuel their aggressive growth.
BUT AREN’T KIDS AND
TEENAGERS GROWING
TOO?
While children are still growing,
they are no longer developing at
the same aggressive rate as they
did as infants. (Even teenage boys
are not tripling their body weight
in months!) Once they are weaned
from breast milk, it simply