An investigation into the role of Chlamydophila spp. in bovine upper respiratory tract disease
2005; Elsevier BV; Volume: 171; Issue: 3 Linguagem: Inglês
10.1016/j.tvjl.2004.12.012
ISSN1532-2971
AutoresD. F. Twomey, Peter C. Griffiths, M. Horigan, B.C. Hignett, Tania Martín-Peñaranda,
Tópico(s)Milk Quality and Mastitis in Dairy Cows
ResumoAn outbreak of upper respiratory tract disease was investigated in a group of 17 housed home-bred calves on a mixed dairy, beef and sheep farm in Devon. Conjunctival swabs were collected and tested for Chlamydophila spp. DNA using a PCR test that detects Chlamydophila abortus and Chlamydophila psittaci. Six of the calves tested gave a positive result. Further epidemiological observations and laboratory testing indicated that the adult dairy cows, from which the affected calves originated, were the most likely source of infection.
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