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Table 4 Odds ratios (OR) and 95% confidence intervals (CI) for pregnancy risk by time and farm

From: Time of insemination in relation to pregnancy rates in beef cattle after oestrus detection with automated activity monitoring system

 

OR

95% CI

P

Time to AI *

   

 <12 h

0.71

0.33–1.51

0.38

 12–24 h

Baseline

  

 >24 h

1.13

0.55–2.32

0.74

Farm

   

 1

Baseline

  

 2

0.73

0.36–1.48

0.38

 3

1.38

0.66–2.92

0.39

 4

0.06

0.01–0.54

0.01

 5

5.39

0.65–44.94

0.12

  1. *Time from automatic activity monitoring system alarm of oestrus until articicial insemination
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Acta Veterinaria Scandinavica

ISSN: 1751-0147