Blood Chemistry of Wild Brazilian Coscoroba Swans During Molt
Blood Chemistry of Wild Brazilian Coscoroba Swans during Molt Cecilia Pe´ rez Calabuig,1,2 Miguel Ferrer,1 and Roberto Muriel1 1 Department of Ethology and Biodiversity Conservation, Estacio´ n Biolo´ gica de Don˜ ana, CSIC, Avda. Americo Vespucio s/n, 41092, Sevilla, Spain; 2 Corresponding author (email: cecicalabuig@ebd.csic.es) ABSTRACT: The Coscoroba Swan (Coscoroba ened consequences of the risks involved in coscoroba) is an unusual member of the capture and sampling of blood from these Anatidae found in South America, from the animals. These data may be of limited use Falkland Islands and Tierra del Fuego through Chile and Argentina, Uruguay, and Paraguay as because studies have not evaluated the far north as Mato Grosso do Sul in Brazil. The effects of confounding factors such as species is not threatened globally, but some physiologic state, age, sex, nutritional local populations have declined and the status condition, circadian rhythm, season, and of others is unknown. The objective of this method of storing plasma (e.g., Mori and study was to quantify the plasma chemistry of a George, 1978; Driver, 1981; Ferrer, 1992; wild population of Coscoroba Swans in south- ern Brazil during their molting period. We Dabbert and Powell, 1993). captured 12 chicks, 14 juveniles, and 31 mature To our knowledge, there are no pub- birds. The following blood parameters were lished accounts of biochemical results from measured: glucose, cholesterol, triglycerides, sampling the blood of free-ranging, wild HDL cholesterol, uric acid, creatin-kinase, aspartate amino transferase, alanine-amino- Coscoroba Swans. The aim of this study transferase, alkaline phosphatase, amylase, was to quantify some key parameters of the and pancreatic amylase.
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