Every now and than my fair steers get the runs/ the sh!ts, they seem to be healthy and gaining weight. I am kinda pushing the grain to them but yet they do get a lot of hay also.So what is going on? Any quick fixes to this? Also I raise them outside and their pen is pretty muddy (spring) would you suggest laying gravel down will this harm their hoofs or anything. Thank You for your advise in advance!!!!!!