Thus it is very plainly to be seen that whey is poor stuff to feed,
even in its best estate. It has some value to mix with other foods,
if used sweet; but when the sugar has all turned to acid, and the
phosphates have become lactates, leaving the phosphoric acid free,
the whey is abominable, and can be used only in small quantities and
with great care. It ought not to be fed to young animals with tender
stomachs, and does older animals no good.