Measurement of Exhaled Nitric Oxide and Exhaled Carbon Dioxide in the Breath of Calves upon Arrival and During a 42-Day Receiving Period

Authors

  • B. P. Holland Department of Animal Science, Oklahoma Agricultural Experiment Station, Oklahoma State University, Stillwater, OK 74078
  • D. L. Step Department of Clinical Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078
  • C. B. Roller Ekips Technologies, Norman, OK 73069
  • G. McMillen Ekips Technologies, Norman, OK 73069
  • M. Montelongo Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078
  • L. O. Burciaga-Robles Department of Animal Science, Oklahoma Agricultural Experiment Station, Oklahoma State University, Stillwater, OK 74078
  • M. P. McCurdy Department of Animal Science, Oklahoma Agricultural Experiment Station, Oklahoma State University, Stillwater, OK 74078
  • C. R. Krehbiel Department of Animal Science, Oklahoma Agricultural Experiment Station, Oklahoma State University, Stillwater, OK 74078

DOI:

https://doi.org/10.21423/aabppro20064718

Keywords:

nitric oxide, lung tissue, pneumonia, lipopolysaccharide, respiratory pathogen, tunable diode laser absorption spectroscopy

Abstract

Endogenous nitric oxide (NO) is produced in many tissues from the amino acid L-arginine by a group of nitric oxide synthase enzymes. The inducible form of this enzyme has been identified in lung tissue from calves that succumbed to pneumonia. In vitro studies have measured NO derivatives from alveolar macrophages, stimulated with lipopolysaccharide and respiratory pathogens. The objective of this study was to measure exhaled nitric oxide (eNO) and exhaled carbon dioxide (CO2) in steers upon arrival, and during a 42-day receiving trial, using tunable diode laser absorption spectroscopy (TDLAS).

Cover image of the 39th Conference Proceedings: Three calves lying down in a pasture next to a white fence. Behind them, a rainbow spans over the distant hills. Yellow background.

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Published

2006-09-21

Issue

2006

Section

Research Summaries 1

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