Effect of platelet activating factor (PAF) supplementation in semen extender on viability and ATP content of cryopreserved canine spermatozoa

• Autorzy: Kordan W. , Lecewicz M. , Strzezek R. , Dziekonska A. , Fraser L.
• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to investigate the effect of platelet activating factor (PAF) on the quality characteristics of cryopreserved canine spermatozoa. Cryopreserved semen of 5 mixed-breed dogs was treated with different concentrations of exogenous PAF (1 × 10⁻³M, 1 × 10⁻⁴M, 1 × 10⁻⁵M and 1 × 10-6M) and examined at different time intervals (0, 30, 60 and 120 min). Cryopreserved semen treated without PAF was used as the control. Sperm quality was evaluated for motility (computer-assisted semen analysis, CASA), mitochondrial function (JC-1/PI assay) and plasma membrane integrity (SYBR-14/PI assay and Hoechst 33258). Also, ATP content of spermatozoa was determined using a bioluminescence assay. Treatment of cryopreserved semen with 1 × 10⁻³ M PAF at 120 min of incubation resulted in significantly higher total sperm motility compared with the control. It was observed that PAF-improved total sperm motility was concurrent with enhanced sperm motility patterns after treatment of cryopreserved semen. Treatment of cryopreserved semen with PAF did not improve either sperm mitochondrial function or plasma membrane integrity, as monitored by different fluorescent membrane markers. Furthermore, ATP content of cryopreserved spermatozoa was significantly higher when PAF was used at a concentration of 1 × 10⁻³ M compared with the control and other PAF treatments, regardless of the incubation time. The findings of this study indicated that treatment with 1 × 10⁻³ M PAF at 120 min of incubation rendered better quality of cryopreserved canine semen, which was associated with improved sperm motility parameters and ATP content. It can be suggested that exogenous PAF addition is beneficial as a supplement for canine semen extender used for cryopreservation.

Słowa kluczowe

EN

platelet-activating factor; supplementation; semen; viability; spermatozoon; cryopreservation; cryopreserved spermatozoon; dog; adenosine triphosphate content; sperm

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2010
• Tom: 13
• Numer: 4
• Opis fizyczny: p.571-579,fig.,ref.

Twórcy

autor

Kordan W.

• Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-718 Olsztyn, Poland

autor

Lecewicz M.

autor

Strzezek R.

autor

Dziekonska A.

autor

Fraser L.

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