Why is cow's colostrum sometimes called green milk?

MonkeyOnALeash

"Green" milk is SUPER RICH. green /grin/ -er, -est, noun, verb 11. full of life and vigor; young http://dictionary.reference.com/browse/green "The "4-4-4 RULE": Milk the cow within the first 4 hours after calving. Feed 4 quarts of "green" colostrum within the first 4 hours after birth. (In very small calves & Jerseys, it may be possible to get only 3 quarts in the calf). A second feeding of "green" colostrum should occur at 6-12 hours after birth. If possible, colostrum feeding should continue on days 2 and 3 of the calf’s life (using transition milk). Colostrum of lesser quality (yellow or red colostrometer reading) can be used for these days." http://www.farmllc.org/custom3.html Oct 28 07, 4:33 AM