Haemopathological responses to chronic inflammation in the houbara bustard (Chlamydotis undulata macqueenii)

D'Aloia, M A.; Samour, Jaime; Howlett, J. C.; Bailey, Thomas A.; Naldo, Jesus L.

doi:10.1007/bf00185174

Cited by 15 publications

(3 citation statements)

References 7 publications

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“…An increase of cell size has been reported in thrombocytes of Houbara bustards (Chlamydotis undulata macqueeni) for certain pathologic conditions, such as chronic inflammations, thus supporting the thesis that different cell sizes of leukocytes may be of diagnostic value for interpreting hemograms in panther chameleons. 11 A link to gravidity-related cell size increase has not been shown in any other study yet. Because all slides of the affected chameleons revealed the same phenomenom -and slides of nongravid individuals processed in the same batch were free of them -staining artefacts are improbable.…”

Section: Discussionmentioning

confidence: 88%

PLASMA BIOCHEMISTRY AND HEMATOLOGY REFERENCE VALUES OF CAPTIVE PANTHER CHAMELEONS (FURCIFER PARDALIS) WITH SPECIAL EMPHASIS ON SEASONALITY AND GENDER DIFFERENCES

Laube

Pendl²,

Clauss

et al. 2016

Journal of Zoo and Wildlife Medicine

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Blood samples of 86 captive panther chameleons (Furcifer pardalis) were collected in January and August from the ventral coccygeal vein in order to establish reference intervals of clinical healthy individuals under similar husbandry conditions for plasma biochemistry and hematology for this species. Significant differences were found in phosphorus, glucose, total protein, albumin, and white blood cell count between males and females in both seasons. Calcium, alanine aminotransferase, aspartate aminotransferase, and lactate dehydrogenase varied in only one season between genders. Significant differences between summer and winter values were present in both genders for uric acid, calcium, phosphorus, glucose, total protein, creatine kinase, and albumin. Additionally, females showed seasonal variations for alanine aminotransferase and aspartate aminotransferase whereas packed cell volume varied in males. Gravid females had significantly higher body weights and increased values for uric acid, calcium, phosphorus, alanine aminotransferase, total protein, and albumin. Cytomorphologic characteristics of blood cells in stained blood films were evaluated to serve as additional parameters for hematology.

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Section: Discussionmentioning

confidence: 88%

PLASMA BIOCHEMISTRY AND HEMATOLOGY REFERENCE VALUES OF CAPTIVE PANTHER CHAMELEONS (FURCIFER PARDALIS) WITH SPECIAL EMPHASIS ON SEASONALITY AND GENDER DIFFERENCES

Laube

Pendl²,

Clauss

et al. 2016

Journal of Zoo and Wildlife Medicine

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“…An elevated H : L ratio is an effective indicator of chronic stress in birds, both captive and free-living, as opposed to the more conventional corticosterone levels, which can only be used to assess acute stress [19]. A reduction in thrombocyte levels, also known as thrombocytopenia, may occur in response to septicaemia, whereas thrombocytosis accompanied by an increase in the size of thrombocytes may indicate chronic inflammation in birds [20].…”

Section: Introductionmentioning

confidence: 99%

Evidence of links between haematological condition and foraging behaviour in northern gannets ( Morus bassanus )

et al. 2020

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Haematological analyses can reveal the physiological condition of birds, which are known to efficiently disguise symptoms of stress and disease. However, the interpretation of such analyses requires species-specific baseline data, which are lacking for most free-living seabird species. We provide baseline reference data for several haematological parameters in northern gannets ( Morus bassanus ) and combine this with telemetry and dietary data to understand the links between haematological condition and foraging behaviour. Blood samples were collected from breeding northern gannets in July 2017 ( n = 15) and 2018 ( n = 28), which were also equipped with GPS tags. Smears were prepared for performing blood cell counts, including immature erythrocyte and microcyte percentages, total and differential leucocyte counts, heterophil : lymphocyte (H : L) ratio and total thrombocyte count; the remaining blood was used for stable isotope analysis and foraging behaviours were inferred from the recovered tag data. Blood cell counts revealed that the sampled birds were highly stressed and some showed an immune response, evident from the abnormal leucocyte counts and the H : L ratio. There were no sex-related differences in haematological parameters or diet, in contrast to foraging parameters where females undertook longer trips than males and spent proportionately more time in search behaviours. The percentage time spent actively foraging was weakly negatively correlated with the percentage of eosinophils. While there was no direct link between haematological condition and diet, one bird feeding at a relatively low trophic level undertook exceptionally short foraging trips and showed abnormal blood cell counts. This suggests a link between haematological condition and foraging ecology that can be employed in assessing seabird health.

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“…Typically, a suite of haematological analytes are assessed (Fudge 2000) and many publications have reported the haematological characteristics of both healthy birds (Howlett et al 1995;Samour et al , 2005Samour et al , 2010Spagnolo et al 2006Spagnolo et al , 2008Black et al 2013) and birds with disorders of health (Hawkey et al 1983(Hawkey et al , 1984aD'Aloia et al 1994;Samour and Peirce 1996;Bienzle et al 1997;Bienzle and Smith 1999;Jaensch and Clark 2004;Tell et al 2004;Clark et al 2013a, b). Analysis of blood has also been incorporated in many physiological and ecological studies of birds (Ots and Hõrak 1996;Ots et al 2001Ots et al , 2002Hanssen et al 2005;Eeva et al 2005;Artacho et al 2007;Parejo et al 2007;Fokidis et al 2008;Buehler et al 2008;Newbrey and Reed 2009;Norte et al 2009;Vinkler et al 2010;Bried et al 2011;Lobato et al 2011;Cirule et al 2012;Hoeck and Keller 2012;Müller et al 2011;Hegemann et al 2012;Zylberberg et al 2012).…”

Section: Introductionmentioning

confidence: 98%

Observed variation in the heterophil to lymphocyte ratio values of birds undergoing investigation of health status

Clark

2014

Comp Clin Pathol

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Analysis of blood has been commonly used in the clinical assessment of the health status of birds and typically encompasses a suite of haematological assays. Determination of the heterophil to lymphocyte (H/L) ratio has been commonly reported as an alternative measure of leukocyte values, particularly in studies of naturally occurring physiological influences on birds. Relatively few studies have assessed the H/L ratio values of birds undergoing haematological assessment as part of an investigation of health status. In the current study, the H/L ratio was retrospectively determined for birds that had undergone a haematological assessment as part of a clinical investigation of health. Of the 176 adult birds assessed, encompassing 70 species and 17 orders within the Aves, the H/L ratio was between 0.19 and 64.67 and was greater than 2.0 in 68.8 % of birds. The current study illustrates that the H/L ratio of birds can be markedly affected by disorders of health which should be considered when interpreting any H/L ratio value.

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Haemopathological responses to chronic inflammation in the houbara bustard (Chlamydotis undulata macqueenii)

Cited by 15 publications

References 7 publications

PLASMA BIOCHEMISTRY AND HEMATOLOGY REFERENCE VALUES OF CAPTIVE PANTHER CHAMELEONS (FURCIFER PARDALIS) WITH SPECIAL EMPHASIS ON SEASONALITY AND GENDER DIFFERENCES

PLASMA BIOCHEMISTRY AND HEMATOLOGY REFERENCE VALUES OF CAPTIVE PANTHER CHAMELEONS (FURCIFER PARDALIS) WITH SPECIAL EMPHASIS ON SEASONALITY AND GENDER DIFFERENCES

Evidence of links between haematological condition and foraging behaviour in northern gannets ( Morus bassanus )

Observed variation in the heterophil to lymphocyte ratio values of birds undergoing investigation of health status

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