In Lake County it is (lowest company price or about 100 gallons) $297 and $347. SHOP AROUND. $2.15 in Chico (Tri Flame Propane) min 100 galons. $2.86 per gallon. The price changes weekly, sometimes even daily. And most definitely by company. In Tehama County it should be around $2.24 as of June 21, 2010. In Shasta County it should be around $2.34 as of June 21, 2010.
If possible, be selective in which cat you ate feeding, or you might end up as a cat hangout. If you already have house cats, they might not appreciate the social or territorial competition. For stray cats any brand of regular cat food works. Also if you ate fish recently the scraps from that meal would be fine. Stray cats don't eat on a consistent basis, so they really would be fine with anything. Water is also necessary.
Grazing, on the other hand, is part of a natural cycle. A portion of the nitrogen and minerals from the consumed forage is returned to the soil with urine and feces. So, whether it's feeding beef cows on the open range or goats in a small paddock, hay is not a supplement - it is a substitute. A substitute for the standing forage or browse that makes up the diet of a ruminant animal in their natural habitat.