Investigating perinatal calf mortality in beef herds.
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.
Wikse
S E
SE
Department of Large Animal Medicine and Surgery, Texas A&M University, College of Veterinary Medicine, College Station.
Kinsel
M L
ML
Field
R W
RW
Holland
P S
PS
D000818:Animals; D000831:Animals, Newborn; D001344:Autopsy / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000401:mortality*; D010808:Physical Examination / Q000662:veterinary*; D011996:Records / Q000662:veterinary*; D012307:Risk Factors