Table 3 Least-squares means ± standard errors of the tolerant groups, inoculation dates, sex and disposal methods for the incidences of persistently nonviremic mink vs others^¥ and persistently seropositive mink vs others^¶ for animals which survived for at least 350 days post-inoculation

Tolerant group^†

13.0 (0.004)^£

11.7 (0.008)^£

 TG0

362

0.655 ± 0.039^a

0.983 ± 0.009^a

 TG50

58

0.742 ± 0.063^ab

0.928 ± 0.032^ab

 TG75

22

0.873 ± 0.072^b

0.929 ± 0.045^ab

 TG100

559

0.774 ± 0.023^b

0.779 ± 0.023^b

Inoculation date

19.2 (< 0.002)^£

25.3 (0.000)^£

 10/2010

271

0.767 ± 0.044^ab

0.977 ± 0.013^a

 12/2010

83

0.830 ± 0.052^a

0.981 ± 0.014^a

 09/2011

203

0.707 ± 0.049^ab

0.946 ± 0.020^a

 12/2011

41

0.817 ± 0.067^a

0.952 ± 0.035^a

 09/2012

221

0.658 ± 0.052^b

0.943 ± 0.021^a

 09/2013

182

0.813 ± 0.041^a

0.766 ± 0.073^b

Disposal method

17.6 (< 0.001)^£

4.6 (0.031)^£

 Died

203

0.699 ± 0.050^a

0.923 ± 0.028^a

 Pelted

798

0.829 ± 0.029^b

0.967 ± 0.011^b

Sex

13.1 (< 0.001)^£

5.2 (0.022)^£

 Female

722

0.708 ± 0.042^a

0.963 ± 0.012^a

 Male

279

0.824 ± 0.035^b

0.930 ± 0.023^b