This study is based on the microbiological analysis of a common slaughterhouse by-product which is the rumen content. before and after treatment with HCl 1N. targeting its valorization in domestic animal feeding. A total of 24 rumen content samples were collected in pairs (two series) immediately after slaughter from 12 ruminants (cattle. https://www.redeturismobrasil.com/product-category/coin-displays/