The former way it plays the diarrhea inhibiter effect effectively without the antibiotic which is used for the infection symptom of the domestic animal fowl and using the synthetic anti-bacterial medicine, in addition, confronting prevention and remedy become possible in the pathogenic infection illness of antibiotic tolerance, it is the safe diarrhea inhibiter and something which offers control method. enterokotsukasu huekarisu (Enterococcus faecalis) EC-12 (FERM ABP-10284) the diarrhea inhibiter of the heating processing dead fungus body or domestic animal fowl which contains the processing ones as the active ingredient, is prescribed to the mother pig of oral administration and especially nursing period and the piglet approximately of weaning stage orally in the domestic animal fowl.従来のように家畜・家禽の感染症に使用されてきた抗生物質や合成抗菌剤を使用することなく、効果的に下痢抑制剤効果を奏し、また、抗生物質耐性の病原性感染病に対しも予防および治療が可能となる、安全な下痢抑制剤及び抑制方法を提供するものである。エンテロコッカス・フェカリス(Enterococcus faecalis)EC-12(FERM ABP-10284)の加熱処理死菌体又はその処理物を有効成分として含有する家畜・家禽の下痢抑制剤を、家畜・家禽に経口投与、特に授乳期の母豚及び離乳期前後の子豚に経口投与する。
