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OJVRTM
Online Journal of Veterinary Research©
Volume 10 (1) : 7- 16, 2006. Redacted
2018.
Infrared
detection and nitric oxide treatment of bovine respiratory disease
Schaefer AL1, Perry BJ2, Cook NJ3, Miller C2, Church J3, Tong AKW1, Stenzler A2
1Agriculture and Agri-Food
Canada, Lacombe Research Centre, 6000 C & E Trail, Lacombe, Alberta, Canada
T4L 1W1; 2Pulmonox Medical Company, Edmonton, Alberta, Canada; and 3Alberta
Agriculture Food and Rural Development, 6000 C & E Trail, Lacombe, Alberta,
Canada T4L 1W1. Email address for corresponding author; aschaefer@agr.gc.ca
ABSTRACT
Schaefer AL, Perry BJ, Cook NJ,
Miller C, Church J, Tong AKW, Stenzler A.,
Infrared
detection and nitric oxide treatment of bovine respiratory disease, Online
Journal of Veterinary Research, 10 (1) : 7-16, 2006. In
a spontaneous induction model, 11 healthy calves were exposed for 3 days to 15
multiple sourced commercial calves carrying bovine respiratory disease (BRD)
viruses (2 were un-infected
controls).
The calves
received respiratory nitric oxide gas (NO) either immediately upon exposure to
the BRD carriers or upon early identification of BRD from infrared orbital
scans (IRT). A third group were treated with NO upon the appearance of clinical
signs. All animals
treated early with NO (preventative and early detection group) displayed IRT
and clinical scores (36.2 C±0.2; 2.7±0.4) similar to controls (36.3 C ±0.2;
1.4±0.5) but lower than the clinical treatment group (37.0 C±0.2; 3.9±0.4, P
<0.05). The data suggest infrared thermography is able to detect signs
of bovine respiratory disease earlier than conventional clinical scoring systems: nitric
oxide may be an effective adjuvant in treating bovine respiratory disease.
Key
words: beef cattle, early disease detection, bovine
respiratory disease, infrared thermography, nitric oxide