Thanks. We have way more grass than our cows can eat anyway and are still retaining heifers to build the herd, but I do notice so many areas that they won't eat because of manure and would like to make sure this isn't a problem as our herd increases. We've also cleared some timber and are in the looooooooonng labor-intensive process of turning that land into pasture, so I'm sure we will have more uses for whatever contraption we come up with than just spreading manure.
Any other thoughts?
Old rear tractor tires, small ones, all chained together in twos or threes. Don't use big tractor tires because they are way too heavy especially when they get filled with dirt and manure. Sometimes you have to flip them on top of each other to get through gates and big ones get way too heavy plus they pull harder. Tire dealers are happy to give them to you so they don't have to pay disposal on them.
If you drag the piles when they are fresh they will smear like peanut butter. Makes real good sun dried organic fertilizer.