Colostrum is secreted from the udder immediately after farrowing and within several hours its composition changes rapidly to that representing sow milk.
Colostrum contains essential
antibodies (immunoglobulins) for the health of the newborn piglet; antibodies
are produced by the body to kill bacteria and viruses. The piglet is born with
very few of the protecting antibodies necessary to thrive and relies strictly on
the sow’s colostrum to obtain them in the defence against bacteria and
viruses.
Colostrum
is a rich source of highly digestible nutrients, which are critical to
establishing the newly born piglet and studies indicate that colostrum contains
natural growth factors for the normal development of vital life-sustaining
organs (eg brain, heart, pancreas, liver and kidneys) and the immature
gut.