Hi C-H's, Thanks to Bob Hobby Farmer for the interesting mixed manure details. Yes you are correct that my question was not very specific - sorry. (I was in "chatty" mode when I should have been in "scientific"!) See you both in May. Joy - thank you for the highly a propos information on alpaca droppings. You C-H's are truly amazing in your diversity. Does anyone out there breed vicunas? They are pretty cool creatures in the wild. -- --- Regards, Cameron.