Calfs have been tough to raise from babies, I am very frustrated by them. They catch pneumonia very easily. and if it is bacterial or viral the wrong treatment can result in mortality, They often do not adjust to the milk replacer well and develop diarehea and dehydrate. They refuse to eat and have to be forced with a tube down their throats and be kept hydrated , but not too much as they get scours. I am learning to hate calfs. They are cute and playfull and expensive to feed and care for. I have just lost two to pnuemonia. I was at the point where several others were ready to be weaned from the bottle , but they refused to eat food .... i was hoping they would start eating soon. It appears that two starved themselves waiting for a bottle that never came. I started two others back on the bottle but it was too late for one of the others which seems to have also had a flu like symptoms. It is tough to bury a group of baby calfs. the holes are pretty big. I thought the vet was expensive , losing all that invested in the calfs is worse.