Whats do you guys think about buying a swamp cooler from www.air-n-water.com - they have several variaties and if they would keep my steers cool enough i would be willing to spend the money. combined with the fans Jill suggested( or some type of vent to get the hot air out) you think it would work? As stated in my reply to Jill, our humidity here is supposed to be under 35% in mid summer(montana).
I am very grateful for all your advice, but as much as i hate to admit it, alot of it confused me. i dont know ANYTHING about this subject so if you think my idea could use improvement, could you please use "baby talk"...lol.... sorry
Last year we were very limited in what we could do to grow hair. My sons steer was located at my Dad's farm about 20 miles away as it was being fed with my Brothers daughters calves. Because of fuel price and time, it was not feasible to tie them up under a fan everyday. We were able to have nice haircoats on all 3 steers.
Dad has an old dairy barn with a hay loft up top. This gave us good insulation on the ceiling wich helped keep the barn cool. If you can find a cheap way to insulate at least the ceiling, it may help. We then had it set up for the steers to go in the barn on their own to be under 2 fans. You will probably need more fans than this with 6 head. Another tip: We made sure all doors except the door they entered in were close. I believe that keeping it dark is just as important as keeping it cool.
The next thing we did was keep the haircoats clean and conditioned as Red has stated above. We were limited at how many times we could do this. We completely washed the calf with soap once a week. 4 nights a week we rinsed each calf, blew them out and used cheap spray on hair condition from Walmart and altered it with Kleen Sheen to keep the hair conditions. It's best to do this every day if possible but as I stated, we were limited.
Another thing to consider is the feed ration and additives. We use a grind/mix show diet with a high oil content($300 /ton). IMO, the high oil content helps with the haircoat as well. We also gave each steer liquid melatonin every day.
You can get more extensive than this but it worked great for us. Keep em in the dark, keep em cool and Keep em Clean!