ArticleTropical animal health and production2026
Effects of bovine herpesvirus 1 on thawed bull sperm and evaluation of methods for its removal from experimentally infected semen.
Article in Tropical animal health and production, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
The first experiment assessed the effect of bovine herpesvirus 1 (BoHV-1) on thawed bull semen. Semen samples testing negative for BoHV-1 via Nested-PCR were incubated at 37 °C with viral concentrations of 0 (control), 10⁴, 10⁵, and 10⁶ TCID₅₀/mL. Sperm quality parameters were evaluated over an 8-hour period. The second experiment assessed the efficacy of two protocols for reducing the viral load (viral titration) in experimentally infected semen (10⁴ TCID₅₀/mL): Percoll gradient (PG) and magnetic nanoparticles coupled with anti-BoHV-1 antibodies (MNPs). Sperm kinematics were influenced by both bull and time, with bull × time interaction (P < 0.001). Membrane integrity and morphology were influenced only by time (P < 0.01), with no effect of viral infection (P > 0.05). In viral titration, all PG-treated samples tested negative. Samples treated with MNPs also yielded negative results after a 60 min-incubation. It is concluded that BoHV-1 had no direct effect on thawed bull sperm quality and that PG appears to be effective removing the viral load. Furthermore, MNP is a viable alternative for virus control in semen, with no apparent deleterious effects to sperm motility.
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