Age-related haematological changes and haemopathological responses in Chilean flamingos (Phoenicopterus chiliensis)

C Hawkey1, M G Hart, H J Samour

  • 1Institute of Zoology, Zoological Society of London, London, England.

Insights

Hematologic values in Chilean flamingos change with age, with chicks showing lower red blood cell counts and higher white blood cell counts than adults. These findings highlight the diagnostic potential of clinical hematology in this species.

Area of Science:

  • Avian hematology
  • Comparative physiology
  • Wildlife health

Background:

  • Hematological parameters are crucial indicators of health in avian species.
  • Establishing age-specific reference ranges is essential for accurate health assessments in Chilean flamingos (Phoenicopterus chilensis).

Purpose of the Study:

  • To determine age-related changes in hematological values in clinically normal Chilean flamingos.
  • To assess the diagnostic potential of clinical hematology in Chilean flamingos.

Main Methods:

  • Collected blood samples from 49 clinically normal Chilean flamingos of varying ages.
  • Performed full blood counts and fibrinogen estimations.
  • Analyzed hematological parameters including hemoglobin, red blood cell count, packed cell volume, and white blood cell count.

Main Results:

  • Chicks (2-3 months) exhibited lower hemoglobin, red blood cell counts, and packed cell volumes compared to adults.
  • Hemoglobin and red blood cell counts increased with age, reaching optimal levels in mature birds.
  • Chicks had higher total white blood cell counts with variable heterophil numbers.
  • Preliminary data from four sick adult birds suggested clinical hematology's diagnostic utility.

Conclusions:

  • Hematological values in Chilean flamingos exhibit significant age-dependent variations.
  • Reference ranges for Chilean flamingo hematology vary considerably between chicks and adults.
  • Clinical hematology shows promise as a diagnostic tool for assessing the health of Chilean flamingos.

Related Concept Videos

Mate Choice01:20

Mate Choice

Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Erythropoiesis01:14

Erythropoiesis

Red blood cells  (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia, and...
Testing a Claim about Mean: Unknown Population SD01:21

Testing a Claim about Mean: Unknown Population SD

A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used; instead...
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...