Various viral and bacterial pathogens interact with environmental factors to cause diarrhea in piglets. Enterococcus spp. are Gram-positive anaerobic bacteria that are commonly found in the gastrointestinal tract of several animal species, including pigs. Enterococcus spp. have been reported to infect several animal species as a pathogen. However, gastrointestinal infection by Enterococcus hirae is rare in pigs; only a few cases have been reported worldwide. Four piglets with diarrhea were examined in the diagnostic laboratory of Optipharm Inc. (Cheongju, Korea). During the initial post-mortem examination, no disease lesions were observed. Upon microscopic examination, we found numerous Gram-positive cocci that were adhered to epithelial villi in the jejunum and ileum. However, the villi did not exhibit significant structural damage. Cultured bacteria were identified as E. hirae using the VITEK 2 system and polymerase chain reaction (PCR). Using PCR, we also confirmed that viruses and protozoa that can potentially infect piglet intestines were absent. In antibiotic susceptibility test, the bacteria were resistant to most types of antibiotics. This study presents rare cases of E. hirae infection of the piglet small intestine, which can occur in association with diarrhea possibly by the continuous use of antibiotics.

국내에서 유망 소과류 및 베리류로 농가에 보급되고 있는 과종 및 품종들을 대상으로 각 과실들 간의 안토시아닌, 폴리페놀 함량, 각 구성성분 및 항산화활성을 분석하였다. 총 안토시아닌 및 폴리페놀 함량을 분석한 결과, 같은 과종에서도 품종에 따라 안토시아닌과 폴리페놀 함량의 차이가 나타났으며, 총 안토시 아닌은 블랙 쵸크베리가 가장 많았으며(927.9~1,149.1 ㎎･100 g-1, F.W.), 총 폴리페놀 함량도 블랙 쵸크베리(502.2~530.5 ㎎･100 g-1, F.W.)에서 가장 많았다. DPPH 항산화활성에서도 블랙 쵸크베리가 가장 높은 것으로 나타나 안토시아닌, 페놀 함 량과 항산화활성과 고도의 상관관계를 나타냈다. 주요 폴리페놀 구성 성분을 조사한 결과 모든 과종에서 quercetin, catechin, epicatechin 함량이 높게 나타났다. 블루베리와 블랙 커런트의 주요 안토시아닌은 delphinidin-3-glucoside로 사스카툰 베리와 블랙 쵸크베리의 주요 안토시아닌은 cyanidin-3- galactoside였다.