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Veterinary Medicine in Exotic and Wild Species: a Retrospective Study of Hematological Parameters in Psittacus Erithacus /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Veterinary Medicine in Exotic and Wild Species: a Retrospective Study of Hematological Parameters in Psittacus Erithacus // Helena Alves Gaspar.
Author:	Gaspar, Helena Alves,
Description:	1 electronic resource (106 pages)
Notes:	Source: Masters Abstracts International, Volume: 83-04.
Contained By:	Masters Abstracts International83-04.
Subject:	Animal feathers. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28752999
ISBN:	9798471146082

Veterinary Medicine in Exotic and Wild Species: a Retrospective Study of Hematological Parameters in Psittacus Erithacus /
Gaspar, Helena Alves,

Veterinary Medicine in Exotic and Wild Species: a Retrospective Study of Hematological Parameters in Psittacus Erithacus /Helena Alves Gaspar. - 1 electronic resource (106 pages)

Source: Masters Abstracts International, Volume: 83-04.

Over the past decade, cage and aviary birds have dramatically increased in popularity as pets. African Grey parrot (Psittacus erithacus) is a species of parrot that belongs to the order Psittaciformes of the Class Aves. Grey parrots are very popular pets due to their intelligence and their ability to mimic human voices, both in tone and range of each person. According to "BirdLife International", as of 2015 two species of Grey parrots are considered: the African Grey parrot (Psittacus erithacus) and the Timneh parrot (Psittacus timneh). The most commonly seen in clinical practice is the African Grey parrot (Psittacus erithacus).Despite bird species being approximately twice as more as mammal species, studies on the hematological parameters of healthy individuals are still scarce in avian species. Furthermore, hematological profiles are critical to the understanding of several disease processes, being particularly useful as diagnostic tools in clinical practice, since birds tend to hide clinical signs of disease.The objective of the present work is to evaluate the influence of variability factors such as age, sex, diet and sedation on the hematological parameters of healthy African Grey parrots and to compare those parameters with the published reference intervals (RI).Data from blood samples of African Grey parrot (Psittacus erithacus) healthy individuals was collected in Zoologic Veterinaris (Barcelona). Blood samples (n=459) were taken during March 2009 to July 2017 from animals (n=239) that were examined in first consultations or check-ups. The animals had no alterations in the clinical examination and no alterations were found in the serum biochemistry analysis, coprology testing or other tests performed. Hematological testing was performed to determine hematocrit (Hct), mean hemoglobin concentration (MHC), mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), total erythrocyte count (RBC), total leukocyte count (WBC), and differential leukogram with absolute and relative counts. All hematological testing was performed in an in-house laboratory and sampling and analysis methods remained constant throughout the whole study. Animals with 0 to 4 years of age showed higher values of Hct (p<0,001), Hgb (p=0,023) and RBC (p=0,018) and lower values of MCHC (p=0,008), WBC (p=0,012) and heterophils (p<0,001) than older animals. Monocytes exhibited significant differences (p=0,035) between different age groups. Females presented higher values of hematocrit, Hgb and RBC (p<0,001) compared to males. Sedated animals showed lower values of WBC (p<0,001), heterophils (p=0,006), lymphocytes (p=0,003) and monocytes (p=0,03) but higher values of Hgb (p=0,01), MCH (p=0,025) and MCHC (p< 0,001). Additionally, part of the hemograms displayed values outside the RI, namely MCV, WBC and monocyte values.Our results suggest that age and sex influence hematological parameters in African Grey parrots. Sedation also affects these parameters, and may help to reduce the stress associated to blood collection. These results can contribute to the creation of databases that would help to establish appropriate RI for this species.

English

ISBN: 9798471146082Subjects--Topical Terms:

3688663
Animal feathers.

Veterinary Medicine in Exotic and Wild Species: a Retrospective Study of Hematological Parameters in Psittacus Erithacus /
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520 $a Over the past decade, cage and aviary birds have dramatically increased in popularity as pets. African Grey parrot (Psittacus erithacus) is a species of parrot that belongs to the order Psittaciformes of the Class Aves. Grey parrots are very popular pets due to their intelligence and their ability to mimic human voices, both in tone and range of each person. According to "BirdLife International", as of 2015 two species of Grey parrots are considered: the African Grey parrot (Psittacus erithacus) and the Timneh parrot (Psittacus timneh). The most commonly seen in clinical practice is the African Grey parrot (Psittacus erithacus).Despite bird species being approximately twice as more as mammal species, studies on the hematological parameters of healthy individuals are still scarce in avian species. Furthermore, hematological profiles are critical to the understanding of several disease processes, being particularly useful as diagnostic tools in clinical practice, since birds tend to hide clinical signs of disease.The objective of the present work is to evaluate the influence of variability factors such as age, sex, diet and sedation on the hematological parameters of healthy African Grey parrots and to compare those parameters with the published reference intervals (RI).Data from blood samples of African Grey parrot (Psittacus erithacus) healthy individuals was collected in Zoologic Veterinaris (Barcelona). Blood samples (n=459) were taken during March 2009 to July 2017 from animals (n=239) that were examined in first consultations or check-ups. The animals had no alterations in the clinical examination and no alterations were found in the serum biochemistry analysis, coprology testing or other tests performed. Hematological testing was performed to determine hematocrit (Hct), mean hemoglobin concentration (MHC), mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), total erythrocyte count (RBC), total leukocyte count (WBC), and differential leukogram with absolute and relative counts. All hematological testing was performed in an in-house laboratory and sampling and analysis methods remained constant throughout the whole study. Animals with 0 to 4 years of age showed higher values of Hct (p<0,001), Hgb (p=0,023) and RBC (p=0,018) and lower values of MCHC (p=0,008), WBC (p=0,012) and heterophils (p<0,001) than older animals. Monocytes exhibited significant differences (p=0,035) between different age groups. Females presented higher values of hematocrit, Hgb and RBC (p<0,001) compared to males. Sedated animals showed lower values of WBC (p<0,001), heterophils (p=0,006), lymphocytes (p=0,003) and monocytes (p=0,03) but higher values of Hgb (p=0,01), MCH (p=0,025) and MCHC (p< 0,001). Additionally, part of the hemograms displayed values outside the RI, namely MCV, WBC and monocyte values.Our results suggest that age and sex influence hematological parameters in African Grey parrots. Sedation also affects these parameters, and may help to reduce the stress associated to blood collection. These results can contribute to the creation of databases that would help to establish appropriate RI for this species.
520 $a Na ultima decada, as aves tem sido animais de companhia cada vez mais populares. O Papagaio-cinzento (Psittacus erithacus) e uma especie de papagaio que pertence a ordem Psittaciformes e a Classe Aves. A popularidade crescente deste animal como animal de companhia deve-se, em grande parte, a sua inteligencia e a sua capacidade de imitar vozes humanas, quer no timbre, quer na amplitude de voz. De acordo com a associacao "BirdLife International", e a partir de 2015, sao consideradas 2 especies de Papagaios-cinzentos: o Papagaio-cinzento-do-Congo (Psittacus erithacus) e o Papagaio-cinzento-de-Timneh (Psittacus timneh). A mais frequente em clinica e o Papagaio-cinzento-do-Congo designado por Papagaio-cinzento (Psittacus erithacus). Os parametros hematologicos de aves saudaveis nao tem sido alvo de estudos tao aprofundados como os de mamiferos, apesar de existirem aproximadamente o dobro de especies de aves. Os perfis hematologicos sao fundamentais para a compreensao de inumeros processos de doenca, sendo particularmente uteis como ferramentas de diagnostico na pratica clinica, uma vez que as aves tendem a ocultar sinais clinicos de doenca.O objectivo do presente estudo e avaliar a influencia de factores de variabilidade como a idade, sexo, dieta e sedacao nos parametros hematologicos de Papagaios-cinzentos saudaveis e comparar os valores obtidos com os valores de referencia estabelecidos.Dados de amostras de sangue pertencentes a individuos saudaveis da especie Papagaio-cinzento (Psittacus erithacus) foram obtidos na Zoologic Veterinaris (Barcelona). As colheitas de sangue (n=459) foram realizadas em animais (n=239) que foram submetidos a exame do estado geral em primeiras consultas ou em consultas de rotina durante o periodo compreendido entre marco de 2009 e julho de 2017. Os individuos nao apresentaram alteracoes no exame de estado geral, bem como nao demonstraram alteracoes nos exames bioquimicos, coprologicos e outros testes realizados. Foram realizados testes hematologicos de modo a determinar o hematocrito, concentracao de hemoglobina, volume corpuscular medio, hemoglobina corpuscular media, concentracao de hemoglobina corpuscular media, contagem total de eritrocitos, contagem total de leucocitos, contagem diferencial de leucocitos, tanto absoluta como relativa. Todos estes exames foram efectuados no laboratorio do hospital e as metodologias de colheita e analise foram mantidas constantes ao longo do estudo.Verificou-se que os animais com idades compreendidas entre 0 e 4 anos exibiam valores mais elevados de Hct (p<0,001), Hgb (p=0,023) e RBC (p=0,018), e valores mais baixos de MCHC (p=0,008), WBC (p=0,012) e heterofilos (p<0,001) quando comparados com os animais mais velhos. Os monocitos mostraram diferencas significativas (p=0,035) entre diferentes idades. Relativamente ao sexo, as femeas apresentaram valores mais elevados de hematocrito, Hgb e RBC (p<0,001) quando comparadas com os machos. Animais sedados tinham valores mais baixos de WBC (p<0,001), heterofilos (p=0,006), linfocitos (p=0,003) e monocitos (p=0,03), mas valores mais elevados de Hgb (p=0,01), MCH (p=0,025) e MCHC (p< 0,001). Uma porcao dos hemogramas mostrou valores fora dos valores de referencia, nomeadamente MCV, WBC e valores de monocitos.
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