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Effect of prolonged aflatoxin B1 administration on blood serum oestradiol-17β and progesterone concentrations of goats during the anoestrus period --

Author

Listed:
  • G.D. Kourousekos

    (Faculty of Veterinary Medicine, Aristotle University, Thessaloniki, Greece)

  • E.K. Theodosiadou

    (Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece)

  • A.G. Lymberopoulos

    (Department of Animal Production, Alexander Technological Educational Institute, Thessaloniki, Greece)

  • S. Belibasaki

    (Veterinary Research Institute, Ηellenic Agricultural Organization Demeter, Thessaloniki, Greece)

  • C. Boscos

    (Faculty of Veterinary Medicine, Aristotle University, Thessaloniki, Greece)

Abstract

The effect of prolonged aflatoxin B1 (AFB1) administration on blood serum oestradiol-17β and progesterone concentrations in goats during the anoestrus period was investigated. Thirty Greek indigenous goats were used; 10 goats received, per os, 50 μg (treated group T50) and 10 goats received 100 μg (treated group T100) AFB1/day/head, respectively, for 31 days, while 10 goats served as controls (C). Blood samples were collected from each goat twice a week to determine serum oestradiol-17β and progesterone concentrations by radioimmunoassay. Multiple linear regression analysis revealed a significant (P < 0.05) positive dependence of blood serum oestradiol-17β concentration over group (C = 0, T50 = 50, T100 = 100), in a dose-dependent manner, and a significant (P < 0.05) negative dependence over time (0-31 days, from the onset to the end of AFB1 administration). Linear regression analysis revealed a significant (P < 0.05) positive dependence of blood serum progesterone concentration over group (C = 0, T50 = 50, T100 = 100), in a dose-dependent manner. Pearson's correlation coefficient revealed a significant (P < 0.05) positive correlation between blood serum oestradiol-17β and progesterone concentration, but only in the goats of the control group. In conclusion, the prolonged administration of 100 or even of 50 μg AFB1/day/head during the anoestrus period, increased blood serum oestradiol-17β and progesterone concentrations of goats, in a dose-dependent manner, and in the treated groups disturbed the positive correlation between oestradiol-17β and progesterone concentration shown in the goats of the control group.

Suggested Citation

  • G.D. Kourousekos & E.K. Theodosiadou & A.G. Lymberopoulos & S. Belibasaki & C. Boscos, 2015. "Effect of prolonged aflatoxin B1 administration on blood serum oestradiol-17β and progesterone concentrations of goats during the anoestrus period --," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 60(4), pages 164-170.
    • Handle: RePEc:caa:jnlcjs:v:60:y:2015:i:4:id:8130-cjas
    DOI: 10.17221/8130-CJAS
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