Reese99 - High dose prednisone does cause the muscle weakness you are talking about. Some people have also complained about pains in joints. I'm sorry to hear about all the things your husband has gone through -- he truly is a trooper. The best thing to do is contact the doctor.
Also, since dairy cows tend to produce twice as much milk as beef or range cows do, dairy cows tend to drink more water on average than a typical beef cow would. So a 1000 lb lactating beef cow may drink around 15 to 20 gallons per day, whereas a 1000 lb lactating dairy cow may drink around 30 to 40 gallons a day. If a certain feed is higher in salt content than another, a bovine will drink more water to counteract the amount of salt that is found in the feed.
Most sources agree that 15-20 years is average for dairy cows. I could find no information on life expectancy for herd sires for the beef industry (the lucky ones that don't end up as steaks and hamburger). Also, I could find no info on the bulls used as herd sires for the dairy industry, only the cows.creage is also an issue, one cow will need 2.1 acres to itself for it to graze for 143 days. Also water, an average cow will drink about 8 gallons of water a day but this will go up to 24 gallons a day in heat of around 90 degrees.