There is no fever. The antibiotic that the vet gave him took care of that very quickly.
As I told someone else, I put my older calf in with him this morning. Maybe that will do the trick.
The coloring of that cow on the right in the pic, in full white is very interesting. I can't recall seeing very many like that.
Around here most of them are dark browns or blacks, or with brown and white spotting together.
@Jesusfreak101 is right about the milk/milk replacer. Had one calf that would not drink replacer for love or money. I finally wound up with getting milk from a dairy because all my cows were dry at the time. It has a different taste than milk and this calf would have rather starved than drank the replacer. I didn't think of that.
One other thing I thought of..... if you see her drinking water, put some electrolytes in it. It will help to boost her energy and it normally doesn't affect the taste very much. Won't hurt the other calf except to make her a little runny in the manure..... Oh, and give her a shot of B-12...or B-Complex...... the B-12 is an appetite stimulant that I have used often on animals not wanting to eat. Vet told me that years ago. I would think that 1- 1 1/2cc a day for 3-5 days. I think you can give it subq or im.... I was giving a full grown cow 10 cc a day for a week and she finally got to wanting to eat. She had gotten cut and it got infected out at pasture one summer and we didn't see it right away....she was always up with the group, and we don't make every single cow get up and walk when we are checking cattle. Finally one day she was away from the rest and didn't want to move when we went out there to her and saw it was infected and swollen. Got her in the catch pen, called vet, and loaded her up on antibiotics, cleaned it out although it was not as bad as it looked after opening it up more to drain, and gave her the B-12 for a week. After about 3 days she showed some interest in feed and by the end of the week, she was wanting out.
It sounds like you have a fair amount of experience with cattle so I am sure you are trying all the tricks. One other thing that many people do that is not good; don't make the hole at the end of the nipple alot bigger for the milk to "run out of". If it seems to be hard for the milk to come out, at the base of the nipple part, there is usually a small round looking spot that is actually for the air to go into the bottle as the animal sucks the milk out so the bottle doesn't collapse. Open it up a little, I often use something like a fork to ream it out, so that the hole is more open/flexible. It's not supposed to be open to see through, but it has a little bit of the rubber over it, and sometimes it is not letting the air in well. If you make the nipple end too big, you risk the chance of the calf getting the milk down into their airway and into their lungs....literally going down the wrong pipe. Especially often happens with newer younger calves.
Nice looking Charolais. Do you raise the purebreds? We have several in our commercial beef herd. Actually find that if they are treated right, they are pretty okay to work with. We run mostly angus, and angus cross cattle, a few Chars, a few Herefords, a few other odd balls.....Some of the chars are bought, we buy and sell some breds and such.... the bought ones are 50/50 on disposition, but some of the calves are pretty good. And they raise some pretty he//acious (as in nice big healthy) calves too.
If you have trouble finding the Vit B-12, pm me and I will get you some and send it. Jeffers or Valley vet ought to have it. They are still available here.
Keep at it with the lamb nipple. I think once he gets it he will go to town. They can be so difficult sometimes. And we have found that anything with brown swiss (dairy) and "ear breeds" if they have been on cows, they are twice as stubborn to get onto a bottle.
Alot of the charolais are more high strung, but the angus/char crosses produce the smokey calves that do well here also. The char gives them more growth and size, without making them too "nutty".... Plus if they have that black nose, the buyers will pay more for the calves than a straight char because the angus is what the buyers here in the east want. All marketing, because the angus breed assoc did a SUPERB job of promoting the breed and pushing the whole taste thing. And another thing, the marbling of the angus at a younger age gives the char/angus crosses an advantage.... the growth is faster and the marbling is good.... so they grade better at the kill plants.