pISSN:1309 - 6958       eISSN:2146 - 1953
2006, Cilt 22, Sayı 3-4, Sayfa(lar) 063-067
Plasma Oxidant/Antioxidant Status in Period from the Day of Ovulation until Embrional Fixation Day of Pregnancy in Mares
Nurettin Aydilek1, M. Osman Atlı2, Hayrettin Çetin3, Hüdai İpek1
1Harran Üniversitesi Veteriner Fakültesi, Fizyoloji Anabilim Dalı, ŞANLIURFA
2Selçuk Üniversitesi Veteriner Fakültesi, Doğum ve Jinekoloji Anabilim Dalı, KONYA
3Adnan Menderes Üniversitesi Veteriner Fakültesi, Doğum ve Jinekoloji Anabilim Dalı, AYDIN
Keywords: Antioxidant, Oxidant, Early pregnancy, Mare
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This study was conducted to investigate plasma estradiol 17f3 and progesteron profiles, oxidant/ antioxidant status and the relationship among these parameters during the period Irom the day of ovulation until emb-rional lixation day in mares. Blood samples were collected on the day of ovulation (d=0) and on days 5, 10. and 16 ol pregnancy in 12 purebred mares. Plasma was analyzed for oxidant (ma I ond i aldehyde, index ol lipid peroxidation) and antioxidants (Vitamin E, (3-carotene, glutathione, catalase, glutathione peroxidase) values. Estradiol 17(3 level decreased after ovulation while, progesteron level gradually increased (p<0.05). Plasma malondialdehyde level on days 5 and 16 of pregnancy significantly were higher than d 0 (p<0.05). Plasma antioxidant parameters except for vitamin E gradually increased and this increase on 16th day was significantly higher than on day of ovulation day. Moreover, a negative correlation was observed (r=-0.50) between the plasma estradiol 17R and malondialdehyde concentrations. In conclusion, plasma malondialdehyde level generally increased, however the concentrations of 0-carotene, glutathione and activities of glutathione peroxidase and catalase parallelly increased during the period from the day ol ovulation until embrional fixation day in mares.