Results 111 to 120 of about 235 (135)
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Comparative Haematology International, 1997
Oxidative metabolic burst activity by heterophils from orange-winged Amazon parrots (Amazona amazonica amazonica) was indirectly evaluated by measuring the oxidation of non-fluorescent intracellular 2′,7′-dichlorofluorescin (DCFH) to fluorescent 2′,7′-dichlorofluorescein (DCF) with flow cytometry.
L. A. Tell +3 more
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Oxidative metabolic burst activity by heterophils from orange-winged Amazon parrots (Amazona amazonica amazonica) was indirectly evaluated by measuring the oxidation of non-fluorescent intracellular 2′,7′-dichlorofluorescin (DCFH) to fluorescent 2′,7′-dichlorofluorescein (DCF) with flow cytometry.
L. A. Tell +3 more
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Bathing behavior of captive Orange-winged Amazon parrots (Amazona amazonica)
Applied Animal Behaviour Science, 2011Abstract Feather maintenance behaviors, particularly preening and bathing, are nearly universal in birds, though their expression and function vary across species. Based on the rain-bathing style of wild Amazon parrots, parrots were sprayed with water to simulate rainfall, and subsequent bathing behavioral parameters were recorded as well as ...
Shannon M. Murphy +2 more
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The effect of early environment on neophobia in orange-winged Amazon parrots (Amazona amazonica)
Applied Animal Behaviour Science, 2004Early experience is often a significant factor in shaping animals’ later behavior. Early maternal separation is associated with negative behavioral outcomes, such as increased fearfulness in rats, while higher levels of maternal grooming during the neonatal period are associated with decreased fearfulness and increased exploratory behavior.
Rebecca A. Fox, James R. Millam
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Preferences of Orange-winged Amazon parrots (Amazona amazonica) for cage enrichment devices
Applied Animal Behaviour Science, 2009Abstract Cage enrichment devices (ED), frequently termed cage "toys," are often provided to captive parrots as a means of promoting a behaviorally stimulating environment, but it is not clear whether particular properties of EDs are more effective than others in eliciting engagement with them.
Lilian C. Kim +2 more
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Developmental Psychobiology, 2004
AbstractStereotypies are abnormal repetitive behaviors that often develop in animals housed in impoverished environments. Stereotypy represents the interaction of several complex developmental phenomena. To characterize the temporal nature of stereotypy increase (escalation) and decrease (attenuation), we monitored changes in stereotypy performance in ...
C L, Meehan, J P, Garner, J A, Mench
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AbstractStereotypies are abnormal repetitive behaviors that often develop in animals housed in impoverished environments. Stereotypy represents the interaction of several complex developmental phenomena. To characterize the temporal nature of stereotypy increase (escalation) and decrease (attenuation), we monitored changes in stereotypy performance in ...
C L, Meehan, J P, Garner, J A, Mench
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Phonation in the Orange-winged Amazon parrot,Amazona amazonica
Journal of Comparative Physiology ■ A, 1976The syrinx of the Orange-winged Amazon parrot includes two external tympaniform membranes thought to be involved in sound production. The position of these membranes at the confluence of the bronchial and tracheal lumina requires that during phonation they be driven by a single column of air and by its attending turbulence patterns.
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Applied Animal Behaviour Science, 2007
Abstract Environmental enrichment both improves the welfare of captive animals and increases the validity of research using these animals. Enrichment programs have been shown to prevent or reduce the development of behavioral vices, stereotypy, and fearfulness.
Rebecca A. Fox, James R. Millam
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Abstract Environmental enrichment both improves the welfare of captive animals and increases the validity of research using these animals. Enrichment programs have been shown to prevent or reduce the development of behavioral vices, stereotypy, and fearfulness.
Rebecca A. Fox, James R. Millam
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VOCAL REPERTOIRE OF WILD BREEDING ORANGE-WINGED PARROTSAMAZONA AMAZONICAIN AMAZONIA
Bioacoustics, 2011ABSTRACT The vocal repertoire of Amazona amazonica during its breeding season has been recorded from wild individuals in Santa Barbara do Para, Para State, Brazil. At individual nests, we continuously recorded vocalizations and behaviour for four hours in the early morning and three hours in the late afternoon, three times a week throughout the ...
LEILIANY NEGRÃO DE MOURA +2 more
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Journal of Avian Medicine and Surgery, 2016
To establish reference intervals in orange-winged Amazon parrots ( Amazona amazonica ) for the complete blood count, plasma biochemical values, and lipid panel and to evaluate age- and sex-related variations, blood samples were obtained from 29 healthy juvenile and adult parrots.
Claire, Vergneau-Grosset +4 more
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To establish reference intervals in orange-winged Amazon parrots ( Amazona amazonica ) for the complete blood count, plasma biochemical values, and lipid panel and to evaluate age- and sex-related variations, blood samples were obtained from 29 healthy juvenile and adult parrots.
Claire, Vergneau-Grosset +4 more
openaire +2 more sources