Post-thaw Addition of Caffeine and/or Pentoxifylline Affect Differently Motility Characteristics of Horse and Donkey Cryopreserved Spermatozoa

Post-thaw sperm motility and viability can be poor and thus partially responsible for the low fertility results after AI. In order to improve sperm survival during freezing, equine and donkey semen extenders have been supplemented with a variety of substances: different cryoprotectants, antioxidants, and cholesterol loaded cyclodextrins (e.g. 1-5). Moreover, with respect of equine semen, caffeine and pentoxifylline, two methylxantine derivative phosphodiesterase inhibitors, have been also tested.
Source: Journal of Equine Veterinary Science - Category: Veterinary Research Authors: Source Type: research