Table 3.

The microbial findings in pigs from herds with diarrhoeic problems in growing pigs and poor average performance, and in pigs from herds without any such problems and good average performance

Animals	Brachyspira pilosicoli	Campylobacter coli	Campylobacter jejuni	Clostridium perfringens	Escherichia coli	Lawsonia intracellularis	Salmonella spp.	Yersinia spp.	Coccidia	Parasites other	Rotavirus
A. Case pigs, n=27	13 (48%)	16 (59%)	4 (15%)	4 (15%)	8 (30%)	18 (67%)	0	3 (11%)	2 (7%)	1 (4%)	1 (4%)
B. Controls, “poor”, n=27	7 (26%)	10 (37%)	10 (37%)	0	6 (22%)	11 (41%)	0	6 (22%)	0	5 (19%)	0
C. Controls, “good”, n=12	0	11 (92%)	0	2 (17%)	1 (8%)	0	0	0	1 (8%)	0	0
Comparison A vs B	NS	NS	NS	–	NS	*	–	NS	–	–	–
Comparison A+B vs C	**	**	*	–	NS	***	–	NS	–	–	–

The case pigs had diarrhoea, whereas the controls were judged as healthy. The number of pigs in each group (%) from which each enteropathogen was isolated.

NS, not significant; –, the number of observations were to few to allow statistical calculations.

^*p⩽0.05.

^**p⩽0.01.

^***p⩽0.001.