Pathogens with potential impact on reproduction in captive and free-ranging European bison (Bison bonasus) in Poland - a serological survey

Table 2 Effect of location on the occurrence of antibodies to Chlamydia spp. and N. caninum in European bison

Pathogen	Source	χ²	Df	P
Chlamydia spp.	Intercept	9.43	1	0.002*
Chlamydia spp.	Location	23.81	7	0.002*
N. caninum	Intercept	0.00	1	0.999
N. caninum	Location	16.33	7	0.022*

Legend: Effect of location on the occurrence of antibodies to Chlamydia spp. (model: χ² = 31.85, df = 7, p < 0.001, N = 130) and N. caninum (model: χ² = 33.15, df = 7, p < 0.001, N = 172) in European bison. Sex did not have a significant influence on the occurrence of Chlamydia spp., nor did age on N. caninum; therefore, these were excluded from the models in the backward elimination procedure (*statistically significant predictors)

ISSN: 1746-6148