Medicinal plants with antioxidant properties can quantitatively and qualitatively improve the sperm fertility indicators and increase sperm fertilization in roosters by disrupting the production of free radicals and neutralizing oxidative stress. The aim of this study was to investigate the effect of different concentrations of ginger extract on the biological parameters of Golpayegani rooster sperm. In this study, the hydroalcoholic extract of ginger in concentrations of 0, 500, 1000 and 2000 mg / L was prepared and added to the drinking water of 36 adult male Golpaygani roosters for four weeks. After four weeks, the effect of different concentrations of the extract on sperm biological parameters (number, total motility, survival and normal morphology) was investigated and compared. Papanicolaou staining was used to evaluate a variety of abnormalities in different parts of the sperm. The results showed that adding ginger extract in all concentrations to drinking water significantly increased the overall motility of sperm and the percentage of sperm with normal morphology. However, a significant increase in the total number of sperm with high viability requires the addition of high doses of the extract (1000 and 2000 mg). There was no significant difference in some of the above indicators between the mean and high concentrations of the extract (P>0.05). In general, continuous consumption of ginger significantly increases the quantitative and qualitative indicators of rooster sperm and plays a role in the improvement of fertility in rooster.
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