Blood: Physical Characteristics, Formed Elements, Hemoglobin, and Coagulation

Sturkie, Paul D.; Griminger, Paul

doi:10.1007/978-3-642-96274-5_3

Cited by 35 publications

(25 citation statements)

References 94 publications

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“…The latter changes, however, would have to occur by a means independent of transcriptional mechanisms currently believed to mediate most if not all of the known effects of the thyroid hormones. Differences in ,8-adrenergic responsiveness were observed to be fully established within 6 wk of the onset of the hypothyroid or hyperthyroid state, a time interval comparable to the known lifespan of avian erythrocytes (30-45 d [42]) and hence also consistent with the time necessary for the establishment of a pure population of cells produced under conditions of either insufficient or excessive thyroid hormone.…”

Section: Discussionsupporting

confidence: 54%

The Influence of Hyperthyroidism and Hypothyroidism on the β-Adrenergic Responsiveness of the Turkey Erythrocyte

Bilezikian¹,

Loeb²,

Gammon³

1979

J. Clin. Invest.

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Section: Discussionsupporting

confidence: 54%

The Influence of Hyperthyroidism and Hypothyroidism on the β-Adrenergic Responsiveness of the Turkey Erythrocyte

Bilezikian¹,

Loeb²,

Gammon³

1979

J. Clin. Invest.

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“…males having higher Hg levels and also higher hematocrits). For example, male adult birds are thought to have higher hematocrit values than females, partly due to the erythropoietic effect of androgens (Sturkie and Griminger 1976), although more recent studies failed to detect significant differences in hematocrits between the sexes in breeding adults (Dawson and Bortolotti 1997a, and references therein) and prefledged chicks of American kestrels Falco sparverius (Dawson and Bortolotti 1997c).…”

Section: Discussionmentioning

confidence: 97%

Mercury levels and health parameters in the threatened Olrog’s Gull (Larus atlanticus) from Argentina

Sala

Petracci

Smits

et al. 2010

Environ Monit Assess

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Mercury (Hg) exposure was investigated through feathers of Olrog's Gull and related to health parameters in adults (hematocrit, total plasma proteins, morphometric measures, sex) and chicks (hematocrit, total plasma proteins, immunoglobulins G and M) from a colony located in estuary of Bahía Blanca, Argentina. Mercury concentrations were 5.50 ± 2.59 μg g⁻¹ (n = 44) in live adults, 1.85 ± 0.45 μg g⁻¹ (n = 45) in live chicks and 1.81 ± 0.41 μg g⁻¹ (n = 41) in dead chicks. Large differences were observed between live adults and live or dead chicks and small differences between live and dead chicks. In the adults, the sex of the birds was the variable that best explained Hg concentrations. Male birds had higher concentrations than females; this suggests that the clutch provides a sink for mercury during egg laying. Hg concentrations in both adults and live chicks were associated with higher hematocrits. This could be associated with upregulated erythropoiesis to compensate for increased rate of destruction of prematurely senescent, Hg-contaminated erythrocytes. Based on our results, on the levels of Hg pollution in the past in the study area, and on the dietary specialization of Olrog's Gull, we must be vigilant about potential negative effects of Hg pollution on this population and recommend continued monitoring on this threatened species.

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“…According to some authors (Lucas and Jamroz, 1961;Sturkie, 1976;Hodges, 1977;Van Der Heyden, 1994;Campbell, 1995;Jain et al, 2000), immature cells are commonly found in smears from healthy birds without necessarily indicating a pathological change. Only one erythrocyte was seen in mitosis.…”

Section: Discussionmentioning

confidence: 99%

“…Only one erythrocyte was seen in mitosis. Some authors (Lucas and Jamroz, 1961;Sturkie, 1976;Hodges, 1977;Van Der Heyden, 1994;Campbell, 1995;Jain et al, 2000) reported that binucleated erythrocytes are occasionally seen, but when present in large numbers, it may suggest neoplastic processes, viral infections or genetic disorders.…”

Section: Discussionmentioning

confidence: 99%

Hematological, morphological and morphometric characteristics of blood cells from rhea, Rhea Americana (Struthioniformes: Rheidae): a standard for Brazilian birds

et al. 2015

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Blood exams are an indispensable tool in bird medicine. This study aimed at describing values and aspects of rheas' hematology, Rhea americana, as well as analyzing the morphology and morphometry of all blood cells. Fifty eight adult rheas of both sexes from two farms, one in Cachoeiro de Itapemirim, Espírito Santo State and the other in São Carlos, São Paulo State, were selected. Blood samples were taken and RBC count, PCV and Hb levels measured and used in hematimetric indexes calculations. The total and differentiated leukocyte counts, as well as the TPP and fibrinogen were determined. Erythrocytes, leukocytes and thrombocytes were identified and characterized morphologically. (27,44±0,80 g/dL); os valores da série branca foram: CTL (12,072±4116/μL), heterófilos (64,10±9,90%), eosinófilos (2,05±2,06%), monócitos (6,40±2,99%), linfócitos (26,93±9,62%), basófilos (0,52±1,27%). Pode-se concluir que, na média, células sanguíneas de emas são maiores que as de outras aves, porém, não é possível diferenciar estas células em esfregaços somente pelo seu tamanho. Além disso, leucócitos de emas possuem diferentes componentes e coloração como acontece em outras espécies de aves, no entanto, não há nenhum componente ou aspectos tintoriais exclusivo para a espécie.Palavras-chave: patologia clínica, hemograma, proteínas, ratitas, Rhea americana.

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Blood: Physical Characteristics, Formed Elements, Hemoglobin, and Coagulation

Cited by 35 publications

References 94 publications

The Influence of Hyperthyroidism and Hypothyroidism on the β-Adrenergic Responsiveness of the Turkey Erythrocyte

The Influence of Hyperthyroidism and Hypothyroidism on the β-Adrenergic Responsiveness of the Turkey Erythrocyte

Mercury levels and health parameters in the threatened Olrog’s Gull (Larus atlanticus) from Argentina

Hematological, morphological and morphometric characteristics of blood cells from rhea, Rhea Americana (Struthioniformes: Rheidae): a standard for Brazilian birds

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