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Investigating perinatal calf mortality in beef herds
S E Wikse1, M L Kinsel, R W Field
1Department of Large Animal Medicine and Surgery, Texas A&M University, College of Veterinary Medicine, College Station.
Abstract:
This article summarizes the information presented in this issue to identify the reasons for a perinatal calf mortality (PCM) problem through a risk-factor-evaluation approach. The benefits of necropsies in PCM investigations are discussed, and the gross lesions of the major causes of PCM are described. The use of 2 x 2 tables to calculate odds ratios and the Chi-square method to test the validity of the odds ratios are presented as methods to determine suspected risk factors. The article concludes with a discussion of the management plan used to solve a PCM problem.