Results 1 to 10 of about 245,965 (316)

Avian defensins

open access: yesVeterinary Immunology and Immunopathology, 2008
Modulation of defensin expression may be one way to improve animal health and to reduce zoonotic diseases. Defensins are small, cationic, and amphipathic cysteine-rich antibiotic peptides found in plants, insects, mammals and birds. Whereas alpha- and theta-defensins appear to be absent in birds, several beta-defensins have been isolated from avian ...
van Dijk, A.   +2 more
openaire   +4 more sources

New vistas unfold: Chicken MHC molecules reveal unexpected ways to present peptides to the immune system

open access: yesFrontiers in Immunology, 2022
The functions of a wide variety of molecules with structures similar to the classical class I and class II molecules encoded by the major histocompatibility complex (MHC) have been studied by biochemical and structural studies over decades, with many ...
Samer Halabi   +4 more
doaj   +1 more source

O sevofluorano em psitacídeos (Amazonas aestiva): determinação da dose mínima (d. a. m) para produção de anestesia geral Sevoflurane in psitacines (Amazonas aestiva): determination of minimal anesthetic concentration to produce general anesthesia

open access: yesCiência Rural, 2002
Foram utilizados 10 psitacídeos da espécie Amazonas aestiva (papagaio-verdadeiro). Após contenção física, a anestesia foi induzida com o auxílio de uma máscara facial conectada ao sistema de Maplesson D (BARAKA), utilizando sevofluorano a 6V% e fluxo ...
Alexandra Alves Nicolau   +3 more
doaj   +1 more source

Efficacy and Underpinnings of the Effigy in Wildlife Management

open access: yesAnimals
Displaying representations or actual individuals of the same or similar species can have a congregating or deterring effect on animals. An effigy, an animal or animal representation in a moribund state, is a tool aimed at deterring target animals in ...
Bryan M. Kluever, Mary J. Foley
doaj   +1 more source

Rapid 18F-FDG Uptake in Brain of Awake, Behaving Rat and Anesthetized Chicken has Implications for Behavioral PET Studies in Species With High Metabolisms

open access: yesFrontiers in Behavioral Neuroscience, 2018
Brain-behavior studies using 18F-FDG PET aim to reveal brain regions that become active during behavior. In standard protocols, 18F-FDG is injected, the behavior is executed during 30–60 min of tracer uptake, and then the animal is anesthetized and ...
Maria E. L. Gold   +8 more
doaj   +1 more source

Introductions of West Nile Virus Strains to Mexico

open access: yesEmerging Infectious Diseases, 2006
Complete genome sequencing of 22 West Nile virus isolates suggested 2 independent introductions into Mexico. A previously identified mouse-attenuated glycosylation variant was introduced into southern Mexico through the southeastern United States, while ...
Eleanor Deardorff   +12 more
doaj   +1 more source

Weak population structure in the North American house wren Troglodytes aedon

open access: yesJournal of Avian Biology
Cryptic genetic differentiation is being increasingly documented in birds and other organisms using genome‐wide variation. A recent example of cryptic genetic differentiation in a widespread species with conserved morphology is the northern house wren ...
William C. Anderson   +5 more
doaj   +1 more source

Human Illness from Avian Influenza H7N3, British Columbia

open access: yesEmerging Infectious Diseases, 2004
Avian influenza that infects poultry in close proximity to humans is a concern because of its pandemic potential. In 2004, an outbreak of highly pathogenic avian influenza H7N3 occurred in poultry in British Columbia, Canada.
S. Aleina Tweed   +14 more
doaj   +1 more source

Avian eggshell thickness in relation to egg morphometrics, embryonic development, and mercury contamination

open access: yesEcology and Evolution, 2020
Eggshell thickness is important for physiological, ecological, and ecotoxicological studies on birds; however, empirical eggshell thickness measurements for many species and regions are limited.
Sarah H. Peterson   +5 more
doaj   +1 more source

From Cell to Beak: In-Vitro and In-Vivo Characterization of Chicken Bitter Taste Thresholds

open access: yesMolecules, 2017
Bitter taste elicits an aversive reaction, and is believed to protect against consuming poisons. Bitter molecules are detected by the Tas2r family of G-protein-coupled receptors, with a species-dependent number of subtypes.
Shira Cheled-Shoval   +6 more
doaj   +1 more source

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