Reply To: Chalav Stam? no such a thing

first of all DA is “displaced abomasum” and not “abdomen”. Secondly, shishim is relevant for a certain ta’aroves, here we do not know that any specific cow in this heard has undergone the procedure, we are discussing a stastical probability, a ruba d’lesa kaman. So we follow the rule of kol d’parish m’ruba parish miD’Oraisa, and miDrabannan miut ha’matzui.