Semen changes in boars after experimental infection with pseudorabies virus
Larsen, R.E.; Shope, R.E.; Leman, A.D.; Kurtz, H.J.
American Journal of Veterinary Research 41(5): 733-739
1980
ISSN/ISBN: 0002-9645 PMID: 6250428 Document Number: 163173
Two groups of adult boars were inoculated with a field strain of Aujeszky's disease virus (ADV) by intranasal droplet; one group was given 5 X 105 median tissue culture infective doses (TCID50), and the other, 5 X 106 TCID50. A third group was maintained as controls. Ejaculates were examined twice a week for volume, spermatozoa number and morphology, and presence of ADV. Severe clinical disease with fever followed administration of the larger virus dose. Death (one boar), testicular degeneration, and transient increase of spermatozoa with proximal cytoplasmic droplets were seen in different members of this group. The smaller dose resulted in seroconversion, but did not produce signs of disease. In this group, volume, spermatozoa number and morphology did not decline. The virus was not isolated from semen. Effects of ADV infection on semen quality in boars seem to be related to the associated clinical signs of systemic disease.