Durvet BCP First Colostrum – powder formula made of 100% natural bovine colostrum for use in neonatal calves as an aid in the transfer of passive immunity, and as an aid in the prevention of severe diarrhea and death associated with K99 E. coli in neonatal calves. Each dose contains min 50 IgG, 30,000 IU vitamin A, 4,000 IU vitamin D3, 200 IU vitamin E and min 2.5 billion CFU total lactic acid bacteria. Directions: Mix 350 gm (1 packet) with 1-1/2 quarts lukewarm water. Administer as a single dose by bottle, pail or esophageal feeder.