Studies on Pigmentation of Bovine Mastitic Streptococci Cultured on Crocin Added Media

Seok, Ho Bong; Kim, Dong Sung; Kim, Sang Youl; Lee, Taik Joo

Korean Journal of Veterinary Research 1976;16(2):191-195.

Ho Bong Seok¹, Dong Sung Kim¹, Sang Youl Kim², Taik Joo Lee²

¹Institute of Veterinary Research, Office of Rural Development
²Division of Animal Husbandry, Chungbug College

Crocin 첨가배지(添加培地)에서의 우유방염유래(牛乳房炎由來) Streptococcus의 색소형성(色素形成)에 관한 연구(硏究)

석호봉¹, 김동성¹, 김상열², 이택주²

¹농촌진흥청 가축위생연구소
²충북대학 축산학과

Abstract

On the basis of pigment production on brain heart infusion agar medium containing crocin, differentiation of mastitic streptococcus was investigated. Intensive crocin reaction was showed in braille heart infusion agar when maximum volume of gardenia powder was 5.0 mg/ml and dark-violet pigmentation of Str. uberis and Group D (Str. facalis) Streptococcus were differentiated from negative strains of Str. dysgalactiae. Also, although most of Str. agalactiae was producted pigment, a few was not affected with the crocin reaction.