I have had cattle aborting this week. My heard is small so this is serious. I have just started to calf and 4 of 5 nice cows have lost their calves. Pulled 2 of them, were dead. The fetus are last stage gestation; hair, look normal (no deformaties, look ready to be born). The one that is alive is not well, is standing up now, but not sucking on own. Just wondering what is going on. Never have had problems like this before. I took blood samples and sent them in. Having feed tested also. Maybe this will be it, but it is not a good start.