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Table 3 Effect of site and visitors on immunoreactive fecal cortisol level in European bison in a general linear mixed model

From: Stress hormone level and the welfare of captive European bison (Bison bonasus): the effects of visitor pressure and the social structure of herds

Source

B

SE

t

P

Intercept

4.16

0.54

7.73

< 0.001*

Sex (F)

0.42

0.39

1.06

0.292

Sex (M)

0

   

Site (FCC Gołuchów)

− 1.89

0.69

− 2.75

0.007

Site (Poznań zoo)

− 0.84

0.73

− 1.16

0.249

Site (Warsaw zoo)

0

   

Visitors (low)

0.04

0.60

0.72

0.943

Visitors (elevated)

0

   

Site*visitors (Gołuchów, Low)

2.59

0.88

2.93

0.005*

Site*visitors (Poznań, Low)

− 0.07

0.97

0.07

0.943

Site*visitors (Warsaw, Low)

0

   
  1. Non-significant age was excluded in the selection procedure
  2. *Statistically significant
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Acta Veterinaria Scandinavica

ISSN: 1751-0147