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      Avian Postovulatory Follicle Homogenate Effect on the Genital Tract Motility

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          Abstract

          The recently ruptured follicles of the avian ovaries were found to contain an oxytocic substance. The substance was found to be heat-labile, nondialyzable and not extractable by lipid solvents. The crude homogenate stimulated the frequency and amplitude of the chicken infundibulum, uterus and uterovaginal junction, if they were taken from hens 2 h before predicted oviposition. The homogenate was found to induce premature oviposition and to stimulate the uterine contractions of rats treated with progesterone. Uterine tissues taken from estrogen-treated rats either did not respond to the homogenate or were inhibited. Addition of phenoxybenzamine or propanolol did not inhibit the stimulatory effect of the homogenate. It is possible that this factor might be involved in regulating oviposition in the hen.

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          Author and article information

          Journal
          HRE
          Horm Res Paediatr
          10.1159/issn.1663-2818
          Hormone Research in Paediatrics
          S. Karger AG
          1663-2818
          1663-2826
          1975
          1975
          21 November 2008
          : 6
          : 5-6
          : 357-365
          Affiliations
          School of Pharmacy, Florida A & M University, Tallahassee, Fla.
          Article
          178686 Horm Res 1975;6:357–365
          10.1159/000178686
          1230427
          © 1975 S. Karger AG, Basel

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          Page count
          Pages: 9
          Categories
          Original Paper

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