A colostrum solid extraction process utilizes rennet coagulation prior to pH adjustment to alter the protein profile resulting in an animal feed supplement which enhances feed efficiency and general health. Rennet coagulation is used to produce extracted whey from colostrum. A pH of the extracted whey is adjusted by cooling the extracted whey to below 70 degrees Fahrenheit, adding an first solution to lower the pH of the extracted whey to 4.2 pH, adding a second solution to lower the pH of the extracted whey to 2.5 pH, agitating the extracted whey after reaching 2.5 pH, resting the extracted whey after agitation, and adding a third solution to raise the pH of the extracted whey to 4.2 pH.
