I had my son asked his boss..the dairy owner-what he suggest his response: force electrolytes down them, he uses a plastic 20oz coke bottle when in a pinch..i have used a turkey baster with my dogs, give a b-12 shot, start antibiotics, do the electrolytes often..get Re-sorb if possible..keep dry and warm..(do be careful in the forse..make them swallow..don't get it in their lungs..straddle the calf, pull head back slightly open mouth, stroke down throat to try and induce swallowing)..
Do you have a farm center close?..the one we have works very close with the dairy farmers and are very knowledgable-sp?-..it does sound like they need some antibiotics-the b-12 may make them feel a little better and help them to eat/drink..