The aim of this study was to determine how the administration of probiotic feed supplements affects selected parameters rumen environment of cattle. how it impresses the basic chemical and biological processes in the rumen. and also to check their influence on the total digestibility of feed in the cannulated cattle. For the experiment two adult cows of Aberdeen Angus breed with impla... https://www.hollandscountryclothinges.shop/product-category/lofting-hook/