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  • 1 Goose Breeding Research Station, Department of Animal Physiology and Health, University of Agricultural Sciences Please ask the editor of the journal.
  • 2 Department of Animal Physiology and Hygiene, Faculty of Animal Science, University of Kaposvár Please ask the editor of the journal.
  • 3 Department of Animal Physiology and Health, Gödöllő Agricultural University Please ask the editor of the journal.
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An experiment was conducted to study the effect of large-dose (-carotene supplementation on blood retinoid and (-carotene levels as well as on the progesterone secretion of the granulosa cells in Japanese quail. Laying quails were assigned to three dietary groups. The control group (Group C) received the basal diet (laying feed containing 9000 IU vitamin A/kg). In the treated groups (Groups BC1 and BC2) the basal diet was supplemented with 102and 103mg/kg (-carotene (BC), respectively. At the end of the two-week feeding period, 10 birds from each group were euthanised. Blood samples were analysed for retinol, retinyl palmitate and (-carotene concentrations. Granulosa cells were isolated from ovarian follicles (F1and F2), and PMSG-inducedin vitroprogesterone (P4) secretion was measured. Similar retinol concentrations were found in both (-carotene supplemented groups, indicating saturation of the retinol-transporting system. (-carotene supplementation was accompanied by hypercarotenaemia, but did not increase the retinyl palmitate levels in the blood. PMSG-induced P4production of the granulosa cells decreased significantly in Groups BC1 and BC2 in a dose-dependent manner.

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  • Impact Factor (2018): 1.059
  • Veterinary (miscellaneous) SJR Quartile Score (2018): Q2
  • Scimago Journal Rank (2018): 0.517
  • SJR Hirsch-Index (2018): 30

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Editor(s)-in-Chief: Benkő, Mária

Managing Editor(s): Székely, András

Editorial Board

      Dénes, Béla
      Eszterbauer, Edit
      Fébel, Hedvig
      Fodor, László
      Harrach, Balázs
      Andras Komaromy (USA)
      Peter Massanyi (Slovak Republic)
      Nagy, Béla
      Németh, Tibor
      Neogrády, Zsuzsanna
      Kurt Pfister (Germany)
      Solti, László
      Szabó, József
      Vajdovich, Péter
      Varga, János
      Štefan, Vilĉek (Slovak Republic)
      Vörös, Károly
      Herbert Weissenböck (Austria)
      Zsarnovszky, Attila

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