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Separation of Avian Preovulatory Follicle Granulosa and Theca Cell Layers for Downstream Applications
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Emesis in birds.

S G Chaney1, M R Kare

  • 1North Carolina State University, Raleigh, USA.

Journal of the American Veterinary Medical Association
|March 15, 2012
PubMed
Summary
This summary is machine-generated.

Emetic responses in birds like gulls and pigeons varied greatly, similar to mammals. These avian species cannot reliably predict mammalian reactions to emetics, showing no clear feeding behavior patterns.

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Area of Science:

  • Comparative emesis research
  • Avian physiology
  • Pharmacology of emetics

Background:

  • Understanding emesis is crucial for drug development and toxicology.
  • Previous research has established emetic responses in various mammalian models.
  • Limited data exists on emetic responses across diverse avian species.

Purpose of the Study:

  • To compare emetic responses in four avian species (herring gull, pigeon, chicken, cowbird).
  • To evaluate the utility of these avian species as models for predicting mammalian emetic responses.
  • To investigate potential patterns in avian emetic responses related to feeding behavior.

Main Methods:

  • Oral and intravenous administration of emetics including copper sulfate, hydergine, apomorphine, and lanatoside C.
  • Observation and recording of emetic responses in herring gulls, pigeons, chickens, and cowbirds.
  • Statistical analysis of individual and species-specific differences in emetic sensitivity.

Main Results:

  • All tested avian species exhibited emetic responses to at least one administered emetic.
  • Significant individual and species-specific variations in emetic response were observed within the avian subjects.
  • The emetic responses in these avian species did not correlate with mammalian responses, limiting their predictive value.
  • No simple pattern linking feeding behavior to emetic response was identified in the studied birds.

Conclusions:

  • Avian species show considerable variability in their emetic responses to various agents.
  • The studied avian species are not suitable models for predicting emetic responses in mammals.
  • Emetic response patterns in these birds do not appear to be directly related to their feeding ecology.