This is my second post. thanks for all the help on my first. Another questions. I recently got into Jersey cows and have been nursing 1/2 Holstein and 1/2 angus calves. I bought 5 initially and they did great. got another 6 and three died within the first 3 days. the calves were approximately 3-5 days old when I got them. two were more sedentary than the others but one was a star nurser. they just laid down and died. Weren't having symptoms. two didn't nurse well but the other was a champ. Supposedly they had colostrum. Any thoughts on what went wrong. I had them on 2 jersey's. big producing cows so they should have had enough milk.