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Table 1 Characteristics of sites (n = 122) where PRRSV wild-type ORF5 sequence was identified according to production type

From: Correlation among genetic, Euclidean, temporal, and herd ownership distances of porcine reproductive and respiratory syndrome virus strains in Quebec, Canada

Characteristics of sites

Breeding sites

Growing sites

  

n = 53

n = 69

Categorical variables

 

%

%

Production type

   
 

Farrowing-to-wean

15

-

 

Farrow-to-grow

6

-

 

Farrow-to-finish

79

-

 

Weaners

-

16

 

Weaner-to-finish

-

14

 

Finishers

-

70

Ownership

   
 

Independent producer

92

43

 

Contract producer

8

57

Distance from public road

   
 

>300 m

6

22

 

≤300 m

94

78

Continuous variables

   

Number of productive sows

median (Q1-Q3)

185 (136–300)

-

Total number of animalsa

median (Q1-Q3)

1350 (891–2020)

1550 (1000–2450)

Distance from closest pig site (m)b

median (Q1-Q3)

400 (220–610)

409 (200–1000)

  1. a Including gilts, sows, weaners and finishers if present on site, b Approximated by the producer.