Complex sentence: Female calves are separated from their mothers within 24 hours of birth, and fed milk replacer to retain the cow's milk for human consumption, while male calves are slaughtered at birth, sent for veal production, or reared for beef.
Split into simpler sentences: Female calves are separated from their mothers within 24 hours of birth, and fed milk replacer to retain the cow's milk for human consumption. Male calves are slaughtered at birth, sent for veal production, or reared for beef.