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Table 7 Flock characteristics used to assess the representativeness of the respondents

From: Flock-level risk factors for outbreaks of infectious arthritis in lambs, Norway 2018

Parameter

Respondents

Members of NSRSª

Flock size (winter-housed ewes), mean

79

86

Lamb mortality (%), mean

4.4

4.4

Breed composition (%)

74.4b

70c

  1. aNorwegian Sheep Recording System
  2. bFlocks with Norwegian White as main breed
  3. cPercentage of ewes (members of the NSRS) that are Norwegian White