With the cold snap that went through the last few days I have a few calves that are a little down eared. My daughters show heifer did not eat her morning grain so after school we went out and took her temp. 103.5 then took the other show heifers in the pen and she was showing no signs of sickness and hers was 105. Then went and got a replacement heifer in that was down eared and snotty nosed and I could tell she was not feeling well, her temp was 105 also. I treated the replacement heifer but let the show heifer go and they are fine today. Ate all the grain and have seen them chewing there cud threw out the day. My question is are the digital thermometers worth a hoot when using them on calves? I could not find the cattle one so went and got the kids out of the house.