Articles | Volume 63, issue 1
https://doi.org/10.5194/aab-63-145-2020
https://doi.org/10.5194/aab-63-145-2020
Original study
 | 
14 May 2020
Original study |  | 14 May 2020

Seasonal variations in quantitative and qualitative sperm characteristics in fertile and subfertile stallions

Yara Suliman, Frank Becker, Armin Tuchscherer, and Klaus Wimmers

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Latest update: 16 Nov 2024
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Short summary
Male fertility is important in horse breeding and depends largely on the quality of the sperm. Horses are seasonal breeders with a natural breeding season that begins in spring and ends in midsummer. This study shows that there is an interaction between seasonal effects and endogenous effects on semen quality and fertility. Semen quality of fertile stallions is more influenced by the seasons than that of subfertile stallions.