Blood chemistry and haematocrit of the black vulture (Aegypius monachus)

Villegas, Auxiliadora; Sánchez, J.; Borrego, Emilio Costillo; Corbacho, Casimiro

doi:10.1016/s1095-6433(02)00097-1

Cited by 78 publications

(72 citation statements)

References 27 publications

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“…However, glucose plasma levels have shown to be highly variable because glucose is used as a rapid and immediate energy source, and depends on metabolic rate, body size, and food intake (Umminger 1977;García-Rodríguez et al 1987b). In addition, the increase in glucose level with age observed for Osprey nestlings might be a consequence of increases in metabolic rate and weight, as already noted for several species (e.g., González and Hiraldo 1991;Ferrer and Dobado-Berrios 1998;Villegas et al 2002;Juráni et al 2004). In fact, as already explained for triglyceride and protein metabolism, higher glucose mobilization would be expected at the end of the nestling period, when physical activity is higher as nestlings prepare for their first flight.…”

Section: Effect Of Sex and Agesupporting

confidence: 57%

“…Specific food deprivation experiments performed under controlled conditions with larger sample sizes might help us to understand the effects of nutritional stress on plasma biochemistry and IBCs in Ospreys. In any case, reported correlations between IBCs and biochemical parameters have usually been poor or irrelevant (e.g., De le Court et al 1995;Villegas et al 2002;Hanauska-Brown et al 2003), since relationships between body mass and structural measurements can be masked by individual morphological variability in the absence of a significant gradient in the nutritional condition of the sampled individuals.…”

Section: Ibcs and Plasma Parametersmentioning

confidence: 99%

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Factors affecting plasma biochemistry parameters and physical condition of Osprey (Pandion haliaetus) nestlings

Muriel

Schmidt²,

Calabuig

et al. 2013

J Ornithol

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We assessed the normal values for 15 blood plasma biochemistry parameters and three indices of body condition (IBCs) in free-living Osprey (Pandion haliaetus) nestlings in Brandenburg (Germany). Values were compared with those of other raptors, and possible sexual and age-related differences were examined. In addition, we looked for possible relationships of habitat quality (measured in terms of foraging conditions and human disturbances) to nestling nutritional condition and productivity. Female nestlings showed higher mean urea levels and lower glucose values than males, which could be related to higher growth rates and nutrient demand of females at the end of the nestling period. Seven parameters also showed variation with age, probably relating to increasing body mass, metabolic rates, and physical activity during the pre-fledging stage. Conversely, the IBCs showed poor correlations with selected nutritional parameters, probably due to the homogeneously acceptable nutritional conditions of the nestlings. Finally, we found that Ospreys did not seem to adjust initial parental investment in relation to habitat quality, since productivity was not affected by habitat indicators. However, in large broods, but not in small ones, nestling nutritional condition improved as foraging conditions improved. These results suggest that females that are in better physical condition seem to produce more and better nourished nestlings in better foraging conditions. Wir beurteilten Normalwerte für 15 biochemische Blutplasma-Parameter und drei Indizes für die Körperkondition (Indices of Body Condition-IBCs) bei freilebenden nestjungen Fischadlern (Pandion haliaetus) in Brandenburg (Deutschland). Die Werte wurden mit denen anderer Greifvogelarten verglichen und mögliche geschlechts-und altersabhängige Unterschiede wurden untersucht. Zusätz-lich haben wir denkbare Zusammenhänge zwischen der Habitatqualität-gemessen anhand der Lage von Gebieten der Nahrungssuche und anhand menschlicher Störung-und dem Ernährungszustand der Nestlinge sowie der Reproduktion untersucht. Weibliche Nestlinge zeigten höhere Harnstoff-Durchschnittswerte und geringere GlukoseWerte als männliche, was mit einer höheren Wachstumsrate und einem höheren Nährstoffbedarf bei den jungen Weibchen gegen Ende der Nestlingsperiode zusammenhängen kann. Sieben Parameter zeigten Veränderungen abhängig vom Alter, wahrscheinlich im Zusammenhang mit der zunehmenden Körpermasse, mit dem höheren Metabolismus und mit der steigenden körperlichen Aktivität während der

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Section: Effect Of Sex and Agesupporting

confidence: 57%

Section: Ibcs and Plasma Parametersmentioning

confidence: 99%

Factors affecting plasma biochemistry parameters and physical condition of Osprey (Pandion haliaetus) nestlings

Muriel

Schmidt²,

Calabuig

et al. 2013

J Ornithol

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show abstract

“…Hematocrit values were significantly lower in younger animals, this discovery could be explained by the fact that adult animals require higher oxygen demands for flight (Villegas et al 2002) or by the fact the young birds are presenting iron deficiency anemia in the moment of collections. However, hemoglobin levels, which are also influenced by oxygen demand (Celdrán et al 1994), were higher in younger animals.…”

Section: Discussionmentioning

confidence: 96%

Haematological values for captive harpy eagle (Harpia harpyja)

Oliveira

Nascimento

Ribeiro³

et al. 2014

Pesq. Vet. Bras.

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Pesq. Vet. Bras. 34(8) Decreasing of harpy eagle (Harpia harpyja) populations in natural environments, mainly in non-preserved areas, makes captive population management an important contribution to genetic diversity conservation. The aim of this study is to evaluate hematological parameters for captive harpy eagles maintained at the wild animals breeding center of Itaipu Binacional, Paraná State, Brazil. Fourteen blood samples from nine harpy eagles were collected from animals of both sexes, of different ages and with no clinical signs of disease. Significant variations were found in haematological values of hematocrit, hemoglobin, mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), leukocyte, a relative number of heterophils, absolute and relative number of lymphocytes, monocytes, eosinophils, basophils and plasma protein between groups of young (less than six months old) and adult birds. Comparing males and females there was variation in the values of erythrocytes, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) on heterophils, absolute and relative number of lymphocytes, eosinophils and basophils. There was also variation in the values of red blood cells, hematocrit, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), leukocyte count, absolute number of lymphocytes, eosinophils and basophils among birds that study compared to another reference birds. Due to the limited information available on harpy eagle hematology, this study will be useful to the clinical assessment of birds maintained in captivity.

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“…The cholesterol metabolism in avian species is similar to that of mammals, but the plasma cholesterol level can significantly increase during vitellogenesis and egg formation in birds (12). It has also been reported that a wide variation of cholesterol levels among avian species may depend on circadian rhythms and the effect of diet (12,34,57). Table 2.…”

Section: Haematologicalmentioning

confidence: 96%

Changes in selected haematological and biochemical parameters in debeaked pheasant hens during the laying period

VOSLAROVA¹

2014

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Summary:Changes in selected haematological and biochemical parameters during the laying period were monitored in pheasant hens kept in a cage system. Thermal cauterization of one-third of the upper part of the beak was performed before the birds were placed in the cage at the beginning of the laying period. Randomly selected pheasant hens were sampled for haematological and biochemical analysis at the beginning of the laying period, and the same hens were subsequently sampled after 6 and 12 weeks of the laying period. The results showed significant changes in the monitored haematological and biochemical parameters during egg laying. At the time when laying capacity approached a maximum, a fall was seen (P<0.05) in haematocrit, haemoglobin, erythrocytes and plasma glucose values, whereas leukocytes, lymphocytes, basophils and plasma uric acid exhibited an increase (P<0.05). At the end of the laying period, a higher (P<0.05) count of leukocytes, lymphocytes, eosinophils, basophils, monocytes, plasma alanine aminotransferase, uric acid, lactate and calcium concentrations were seen, whereas for haematocrit, heterophil to lymphocyte ratio, plasma total protein, and glucose lower (P<0.05) values were recorded in comparison with the values of the given indicators at the beginning of the laying period. The results determined provide new information about the dynamics of selected haematological and biochemical indicators in clinically healthy common pheasant layers during the course of the laying period.

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Blood chemistry and haematocrit of the black vulture (Aegypius monachus)

Cited by 78 publications

References 27 publications

Factors affecting plasma biochemistry parameters and physical condition of Osprey (Pandion haliaetus) nestlings

Factors affecting plasma biochemistry parameters and physical condition of Osprey (Pandion haliaetus) nestlings

Haematological values for captive harpy eagle (Harpia harpyja)

Changes in selected haematological and biochemical parameters in debeaked pheasant hens during the laying period

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