Agreement between bovine respiratory disease scoring systems for pre-weaned dairy calves

Sharif S Aly, William J. Love, Deniece R. Williams, Terry W Lehenbauer, Alison Van Eenennaam, Christiana Drake, Philip H Kass, Thomas B Farver

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Clinical scoring systems have been proposed for respiratory disease diagnosis in calves, including the Wisconsin (WI) system (McGuirk in 2008) which uses five clinical signs, each partitioned into four levels of severity. Recently, we developed the California (CA) bovine respiratory disease (BRD) scoring system requiring less calf handling and consisting of six clinical signs, each classified as normal or abnormal. The objective of this study was to estimate the on-farm agreement between the WI and the CA scoring systems. A total of 100 calves were enrolled on a CA dairy and assessed for BRD case status using the two scoring systems simultaneously. The Kappa coefficient of agreement between these two systems was estimated to be 0.85, which indicated excellent agreement beyond chance. The simpler design and reduced calf handling required by the CA BRD scoring system may make it advantageous for on-farm use.

Original languageEnglish (US)
Pages (from-to)148-150
Number of pages3
JournalAnimal health research reviews / Conference of Research Workers in Animal Diseases
Volume15
Issue number2
DOIs
StatePublished - Dec 28 2014

Keywords

  • bovine respiratory disease
  • CA scoring system
  • clinical signs
  • dairy calves
  • WI scoring system

ASJC Scopus subject areas

  • Animal Science and Zoology

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