Skip to main content

Table 1 Testicular lesion score (TLS), in situ hybridization (ISH), and apoptosis in boars at different days post-inoculation (dpi)

From: Comparative pathogenesis of type 1 (European genotype) and type 2 (North American genotype) porcine reproductive and respiratory syndrome virus in infected boar

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
  1. aSignificantly different PRRSV-positive cells between spermatogonia and spermatocyte.
  2. bSignificantly different numbers of apoptosis between type 1 and type 2 PRRSV-infected boars.