Alterations in Uterine Contractility During the Oviposition Cycle in Domestic Hens

N. Saito; T. I. Koike

doi:10.1080/00071669208417505

Alterations in Uterine Contractility During the Oviposition Cycle in Domestic Hens

N. Saito, T. I. Koike

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The potencies of several neurohypophysial hormones were examined at different times during the oviposition cycle in an in vitro fowl oxvtocic assay. Uterine tissues were removed 2 h before (—2h-OP), immediately after (Oh-OP) and 5 h after (+5h-OP) spontaneous oviposition. In addition, uterine tissue was removed immediately after oviposition was induced, by administering prostaglandin E₂ 2 h before an expected oviposition (Induced-OP). The rank order of oxytocic potencies for the peptides was arginine vasotocin=vasopressin>oxytocin>mesotocin. The sensitivity of the uterus to the hormones was Oh-OP = Induced-OP> — 2h-OP= + 5-OP. These results suggest that uterine sensitivity to neurohypophysial hormones changes during the oviposition cycle in domestic fowls.

Original language	English
Pages (from-to)	671-676
Number of pages	6
Journal	British poultry science
Volume	33
Issue number	3
DOIs	https://doi.org/10.1080/00071669208417505
Publication status	Published - Jul 1 1992
Externally published	Yes

ASJC Scopus subject areas

Food Science
Animal Science and Zoology

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10.1080/00071669208417505

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abstract = "The potencies of several neurohypophysial hormones were examined at different times during the oviposition cycle in an in vitro fowl oxvtocic assay. Uterine tissues were removed 2 h before (—2h-OP), immediately after (Oh-OP) and 5 h after (+5h-OP) spontaneous oviposition. In addition, uterine tissue was removed immediately after oviposition was induced, by administering prostaglandin E2 2 h before an expected oviposition (Induced-OP). The rank order of oxytocic potencies for the peptides was arginine vasotocin=vasopressin>oxytocin>mesotocin. The sensitivity of the uterus to the hormones was Oh-OP = Induced-OP> — 2h-OP= + 5-OP. These results suggest that uterine sensitivity to neurohypophysial hormones changes during the oviposition cycle in domestic fowls.",

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AU - Koike, T. I.

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N2 - The potencies of several neurohypophysial hormones were examined at different times during the oviposition cycle in an in vitro fowl oxvtocic assay. Uterine tissues were removed 2 h before (—2h-OP), immediately after (Oh-OP) and 5 h after (+5h-OP) spontaneous oviposition. In addition, uterine tissue was removed immediately after oviposition was induced, by administering prostaglandin E2 2 h before an expected oviposition (Induced-OP). The rank order of oxytocic potencies for the peptides was arginine vasotocin=vasopressin>oxytocin>mesotocin. The sensitivity of the uterus to the hormones was Oh-OP = Induced-OP> — 2h-OP= + 5-OP. These results suggest that uterine sensitivity to neurohypophysial hormones changes during the oviposition cycle in domestic fowls.

AB - The potencies of several neurohypophysial hormones were examined at different times during the oviposition cycle in an in vitro fowl oxvtocic assay. Uterine tissues were removed 2 h before (—2h-OP), immediately after (Oh-OP) and 5 h after (+5h-OP) spontaneous oviposition. In addition, uterine tissue was removed immediately after oviposition was induced, by administering prostaglandin E2 2 h before an expected oviposition (Induced-OP). The rank order of oxytocic potencies for the peptides was arginine vasotocin=vasopressin>oxytocin>mesotocin. The sensitivity of the uterus to the hormones was Oh-OP = Induced-OP> — 2h-OP= + 5-OP. These results suggest that uterine sensitivity to neurohypophysial hormones changes during the oviposition cycle in domestic fowls.

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Alterations in Uterine Contractility During the Oviposition Cycle in Domestic Hens

Abstract

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