オバラ チズカ   Obara Chizuka
  小原 千寿香
   所属   東邦大学  理学部 生物学科
   職種   博士研究員
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Forestomach developmental failure in an 11-month-old Japanese Black steer with severely retarded growth and chronic ruminal tympany.
掲載誌名 正式名:The Journal of veterinary medical science
掲載区分国内
巻・号・頁 83(2),pp.220-225
著者・共著者 Tetsushi Ono,Keiichi Hisaeda,Yoichi Inoue,Yutaka Yamada,Kenichi Shibano,Ikki Mitsui,Chizuka Henmi,Yumi Une,Hideaki Hayashi,Sanggun Roh,Masakatsu Nohara,Eiji Uchida,Hajime Nagahata
発行年月 2021/02/25
概要 This study reports findings from the pathological examination of the forestomach of an 11-month-old Japanese Black steer with severely retarded growth (41% of expected weight) and chronic ruminal tympany. The ruminal papillae were weakly formed (0.3-0.5 cm long) and unevenly distributed. The cellulae and cristae reticuli were underdeveloped; the cristae were 0.4-0.7 cm in height and milky white. The keratinized layer in the stratified squamous epithelium was thickened. Ruminal pH was 5.25, and ruminal volatile fatty acid concentration was 11.7 mM. The steer's severely retarded growth was considered to be caused by malnutrition due to developmental and functional failure of the forestomach.
DOI 10.1292/jvms.20-0448
PMID 33473049