thanks to you all,i ordered some, respiro-san dry,thats was advertised in the bhw.that as not come yet.i am going to use under the deep litter.i will try getting some hemp core,tommorrow,if not it will be the straw.i think all forms of deep litter,such as straw,hemp core,sand,shavings,are all used successfully,by you all. once again thanks to you all kind regards pdordin