Increase in Plasma Luteinizing Hormone and Estradiol-17.BETA. Concentrations following an injection of Luteinizing Hormone-Releasing Hormone in Incubating and Brooding Gifujidori Hens.

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  • KUWAYAMA Takehito
    Department of Zootechnical Science, Tokyo University of Agriculture
  • SHIMADA Kiyoshi
    Department of Biological Resources and Environmental Science, Nagoya University
  • WADA Masaru
    Faculty of General Education, Tokyo Medical and Dental University
  • TANAKA Katuhide
    Department of Zootechnical Science, Tokyo University of Agriculture

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Other Title
  • 抱卵および育雛中の岐阜地鶏母鶏における黄体形成ホルモン放出ホルモン投与後の血漿黄体形成ホルモンおよびエストラジオール濃度の増加
  • Increase in Plasma Luteinizing Hormone and Estradiol-17 β Concentrations following an Injection of Luteinizing Hormone-Releasing Hormone in Incubating and Brooding Gifujidori Hens
  • Increase in Plasma Luteinizing Hormone

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Abstract

Chicken luteinizing hormone-releasing hormone-I (cLHRH-I) was injected intravenously into incubating and brooding Gifujidori hens, and the plasma concentrations of luteinizing hormone (LH) and estradiol-17β (E2) were measured by a radioimmunoassay. The LH concentration increased within 15 min after the injection, and the E2 concentration increased within 60 min. The results suggest that the pituitary of incubating and brooding hens is capable to respond to cLHRH-I and the ovary is also capable to respond to LH released by cLHRH-I.

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