Researchers used magnetic nano-particles to improve boar semen quality. They treated sperm samples with these particles and found that sperm motility significantly increased by an average of 7.11%. The enhancement was more noticeable in groups with lower initial motility levels. Additionally, sperm viability improved by 4% and sperm abnormality decreased by 3.7-4.5% after treatment. The degree of sperm agglutination also decreased in groups with lower motility levels.