Had a 3 month old calf that was born on a bitterly cold day. Was picked up and pennned. The mother refused to nurse. Had to be present to make her nurse the calf. After about a month the mother finally accepted the calf. Seemed fine, however the calf started having problems with her hind legs. Took her to the vet and said that it was problems with tendons, not growing with her. Was put on medication ???? Another vet said he would not have prescribed such med. He shot her with another med. Did not make progress, would or could not get up, like her hind legs would not work for her. Calf was put down, and opened up. Was told that hind quarters were black and large blood clots were found. Would medication cause blackening, or was it a disease?