Risk factors for lower respiratory tract disease in a cohort of feedlot cattle.

B. H. Alexander, D. W. MacVean, M. D. Salman

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Using data collected from company lot records, potential risk factors related to feedlot management, the cattle, and climate were determined. The risk factors were analyzed by use of weighted multiple regression techniques to determine their effects on the incidence of lower respiratory tract disease in a cohort of 95 lots containing 17,696 cattle. The gender of the cattle, the number of days that groups of cattle filled a lot, pregnancy checking of heifers, and the average temperature change in the first 14 days in which the cattle were on feed significantly influenced the incidence of lower respiratory disease. The incidence of lower respiratory tract disease was most influenced by risk factors in the first 30 days on feed.

Original languageEnglish (US)
Pages (from-to)207-211
Number of pages5
JournalJournal of the American Veterinary Medical Association
Volume195
Issue number2
StatePublished - Jul 15 1989

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