Just wondering. Seems some do better than others on milk -based replacers. For the ones that don't do well on it, seems healthier to get them on grass and hay and grain. Haven't really experienced one that does well on milk-based replacer yet so can't tell you if a 6-8 week weaning target date is even reasonable. My target date has been 5 weeks. When I had two on my Jersey, I let her wean them and one heifer calf was still nursing partially at 8 months. Big difference!