Table 5.

Distribution of Salmonella serovars from faecal pats and environmental samples by heifer raiser and age group

Serovar	No. (%)*
Heifer raiser
HOME†
Pooled faecal pats (n = 31)
Liverpool	1 (3·2)
Cerro	30 (96·7)
Environment (n = 3)
Cerro	3 (100)
MULTI‡
Pooled faecal pats (n = 8)
Dublin	2 (25)
Cerro	6 (75)
Environment (n = 2)
Cerro	2 (100)
Age group
AP§
Pooled faecal pats (n = 12)
Liverpool	1 (8·3)
Dublin	2 (16·6)
Cerro	9 (75)
Environment (n = 2)
Cerro	2 (100)
DP||
Pooled faecal pats (n = 27)
Cerro	27 (100)
Environment (n = 3)
Cerro	3 (100)

^*Number or percent of samples that cultured positive for Salmonella and that belonged to the referred serotype.

^†On-farm heifer raisers (HOME) with heifers from only that farm.

^‡Off-farm multi-source heifer raisers (MULTI) that raised heifers from at least two farms.

^§AP: isolates from pooled faecal pats collected from pens with animals that had arrived at the farm within the previous 2 months.

^||DP: Isolates from pooled faecal pats collected from pens with animals that would be departing the heifer raiser in 2–3 months.