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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock 72205.

Br Poult Sci. 1992 Jul;33(3):671-6. doi: 10.1080/00071669208417505.

The potencies of several neurohypophysial hormones were examined at different times during the oviposition cycle in an in vitro fowl oxytocic assay. 2. Uterine tissues were removed 2 h before (-2h-OP), immediately after (0h-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). 3. The rank order of oxytocic potencies for the peptides was arginine vasotocin = vasopressin greater than oxytocin greater than mesotocin. The sensitivity of the uterus to the hormones was 0h-OP = Induced-OP greater than -2h-OP = +5-OP. 4. These results suggest that uterine sensitivity to neurohypophysial hormones changes during the oviposition cycle in domestic fowls.

在体外鸡催产素测定中，在产卵周期的不同时间检测了几种神经垂体激素的效价。2. 在自然产卵前2小时（-2h-OP）、产卵后立即（0h-OP）和产卵后5小时（+5h-OP）取出子宫组织。此外，在预期产卵前2小时通过给予前列腺素E2诱导产卵后立即取出子宫组织（诱导产卵-OP）。3. 这些肽的催产效价顺序为精氨酸加压催产素 = 加压素＞催产素＞中催产素。子宫对这些激素的敏感性为0h-OP = 诱导产卵-OP＞-2h-OP = +5h-OP。4. 这些结果表明，家鸡子宫对神经垂体激素的敏感性在产卵周期中会发生变化。

Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock 72205.

Br Poult Sci. 1992 Jul;33(3):671-6. doi: 10.1080/00071669208417505.

The potencies of several neurohypophysial hormones were examined at different times during the oviposition cycle in an in vitro fowl oxytocic assay. 2. Uterine tissues were removed 2 h before (-2h-OP), immediately after (0h-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). 3. The rank order of oxytocic potencies for the peptides was arginine vasotocin = vasopressin greater than oxytocin greater than mesotocin. The sensitivity of the uterus to the hormones was 0h-OP = Induced-OP greater than -2h-OP = +5-OP. 4. These results suggest that uterine sensitivity to neurohypophysial hormones changes during the oviposition cycle in domestic fowls.

在体外鸡催产素测定中，在产卵周期的不同时间检测了几种神经垂体激素的效价。2. 在自然产卵前2小时（-2h-OP）、产卵后立即（0h-OP）和产卵后5小时（+5h-OP）取出子宫组织。此外，在预期产卵前2小时通过给予前列腺素E2诱导产卵后立即取出子宫组织（诱导产卵-OP）。3. 这些肽的催产效价顺序为精氨酸加压催产素 = 加压素＞催产素＞中催产素。子宫对这些激素的敏感性为0h-OP = 诱导产卵-OP＞-2h-OP = +5h-OP。4. 这些结果表明，家鸡子宫对神经垂体激素的敏感性在产卵周期中会发生变化。