Morphological and Hematological Responses to Hypoxia During Development in the Japanese quail, Coturnix coturnix

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Hypoxic responses in quail development differ depending upon stage, duration and level of oxygen partial pressure of embryo. Incubation was switched to/from 110mmHg partial pressure (hypoxia), to/from 150mmHg (normoxia) during different stages in development, and control was incubated in normoxia throughout. Hatchability and embryo survival resulted in no hatchlings in continuous hypoxia. Responses to various hypoxic exposures throughout development resulted in recovery/repair of hypoxic damage by hatch. Heart and body mass, beak and toe length, hemoglobin, and hematocrit were measured to determine embryo responses to hypoxia during development at days 10, 15, and hatch. Hypoxia seemed to have the most ... continued below

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Elmonoufy, Nourhan May 2003.

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  • Elmonoufy, Nourhan

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Hypoxic responses in quail development differ depending upon stage, duration and level of oxygen partial pressure of embryo. Incubation was switched to/from 110mmHg partial pressure (hypoxia), to/from 150mmHg (normoxia) during different stages in development, and control was incubated in normoxia throughout. Hatchability and embryo survival resulted in no hatchlings in continuous hypoxia. Responses to various hypoxic exposures throughout development resulted in recovery/repair of hypoxic damage by hatch. Heart and body mass, beak and toe length, hemoglobin, and hematocrit were measured to determine embryo responses to hypoxia during development at days 10, 15, and hatch. Hypoxia seemed to have the most deleterious effects on eggs in continuous hypoxia. Collectively, data indicate critical developmental windows for hypoxia susceptibility, especially during mid-embryonic development.

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  • May 2003

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  • Feb. 15, 2008, 2:31 p.m.

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  • Dec. 15, 2008, 11:27 a.m.

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Elmonoufy, Nourhan. Morphological and Hematological Responses to Hypoxia During Development in the Japanese quail, Coturnix coturnix, thesis, May 2003; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc4222/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .