Epidemiological studies on the respiratory cryptosporidiosis of broiler in Korea

Oh, Myeong-ho; Eun, Gil-soo; Kim, Hong-jup; Chung, Uoon-ik

Korean Journal of Veterinary Research 1993;33(4):693-699.

Myeong-ho Oh, Gil-soo Eun, Hong-jup Kim, Uoon-ik Chung

Miwon Institute of Animal Science

국내 육계의 호흡기형 크립토스포리디움증에 대한 역학적 조사연구

오명호, 은길수, 김홍집, 정운익

미원축산과학연구소

Abstract

In 1990, a retrospective examination of histologic data determined that 23 histology accessions at the Miwon Institute of Animal Science had a diagnosis of crytosporidiosis. These cases presented 10% of the 230 histologic examinations of broiler chicks of 23 cases, 18 cases were respiratory infection and 5 cases were bursal infection. The histologic findings of respiratory cryptosporidiosis were hyperplasia of mucosa epithelial cell, slightly swelling of epithelial cells, deciliation of tracheal epithelium, distribution of cryptosporidium organisms in epithelial surface of trachea and infiltration of plasma cells and lymphocytes in mucosa propria layer in trachea.