Table 4. Output from MCMCglmm explaining different aspects of infections status, according to host age and breed type, and farm practice.

Data came from subset of female cattle where native and crossbreeds cohabited the same farms and the table reports values from the final model following removal of non-contributing fixed effects and interactions.

	Posterior Mean	L-95% C.I.	U-95% C.I	Effective Sample Size	pMCMC
Total No. Infections
place	14.5	1.1x10-5	9.25	521
(Intercept)	0.29707	-2.58405	4.04922	1156	0.872
Breed type	-0.11105	-0.56548	0.32472	2000	0.618
age class	-0.21617	-0.58534	0.17283	2000	0.247
acaricide treatment	-0.43909	-1.36708	0.49036	1603	0.364
vaccination	-0.03278	-0.90194	0.78611	1685	0.962
Apicomplexan Infection Status
location	43.06	1.8x10-7	157	315
(Intercept)	-0.76257	-6.91175	5.12882	2719	0.547
Breed type	-0.09615	-0.77691	0.68626	1680	0.799
age class	0.22371	-0.42928	0.88734	1682	0.486
acaricide treatment	-1.66745	-3.32166	-0.01827	806	0.026*
vaccination	0.56982	-0.90163	1.96086	1856	0.443
Multiple Infection Status
location	28.04	2.45x10-6	94.06	463
(Intercept)	3.594	-2.6346	10.2064	2870.9	0.215
Breed type	-3.1726	-6.0226	-0.5286	1551.1	0.02*
age class	-2.6049	-4.5877	-0.5945	1809.6	0.011*
acaricide treatment	-0.5001	-2.0654	1.0522	971.5	0.567
vaccination	1.5511	-0.5071	4.1432	889.5	0.121
Breed type*age class	1.37	0.1214	2.7783	1717.2	0.044*
Anaplasma spp. Infection Status
Location	127.9	0.45	502.4	134
(Intercept	2.4181	-13.1227	12.2393	1481	0.433
Breed type	-0.1538	-0.9581	0.5821	1730	0.713
age class	-0.4809	-1.1411	0.1403	1839	0.135
acaricide treatment	-0.2311	-1.5223	1.1117	1676	0.741
vaccination	-2.367	-4.4194	-0.6101	1193	0.003*

Statistically significant fixed effects are marked *.