Regarding the physiology text printed in 1990: check the date of the
specific
reference for that statement about colostral antibodies not crossing the
GI tract after 24hrs. of life. I have often been surprised by the
ancient, out dated materials used in texts and journal articles. It
always pays to critique everything you read and judge it againt current
knowledge. Anne Andrianos, MSN, IBCLC, LLL