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. 2013 May 21;10:156. doi: 10.1186/1743-422X-10-156

Table 1.

Testicular lesion score (TLS), in situ hybridization (ISH), and apoptosis in boars at different days post-inoculation (dpi)

DPI
 n
 PRRSV
 TLS
 Number of positive germ cells for ISH
 Apoptosis
        Spermatogonia Spermatocyte Spermatid Non-sperm cell  
14
 3
 Type 1
 5.9 ± 1.5
 1.4 ± 0.8
 2.5 ± 0.6
 2.0 ± 0.6
 1.4 ± 0.4
 35.2 ± 1.4b
 
  
 Type 2
 6.0 ± 1.4
 1.1 ± 0.6
 2.1 ± 0.4a
 1.9 ± 0.7
 1.4 ± 0.4
 28.4 ± 5.8
21
 3
 Type 1
 7.1 ± 1.0
 0.9 ± 0.5
 1.9 ± 0.5a
 1.1 ± 0.7
 1.2 ± 0.3
 23.6 ± 7.2
 
  
 Type 2
 7.2 ± 1.2
 0.9 ± 0.5
 1.7 ± 0.4
 1.3 ± 0.4
 1.1 ± 0.7
 21.6 ± 6.8
35
 3
 Type 1
 8.5 ± 0.5
 0.5 ± 0.7
 0.9 ± 0.5
 0.5 ± 0.5
 0.3 ± 0.4
 16.0 ± 4.2
    Type 2 8.4 ± 0.6 0.4 ± 0.6 0.8 ± 0.4 0.6 ± 0.4 0.4 ± 0.5 16.2 ± 6.4

aSignificantly different PRRSV-positive cells between spermatogonia and spermatocyte.

bSignificantly different numbers of apoptosis between type 1 and type 2 PRRSV-infected boars.