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Blood biochemistry rates of South American River Turtle (Podocnemis expansa, Schweigger 1812)(TESTUDINATA) bred in captivity



The aim of the present research was to
evaluate the biochemistry of blood constituents from
the South American River Turtle Podocnemis expansa,
Schweigger 1912. For this experiment, 46 animals
from Moenda do Lago Farm, a commercial farm from
São José dos Bandeirantes, Goiás State, Brazil, were
used, the blood being collected from the vertebral sinus,
trsnferred to vacuntainer tubes without anticoagulant,
spun down, the serum collected in eppendorfs and
storaged at 20C and the respective analysis carried
out by colorimetric techniques and fast glucose sensor
Precision Plus MedsenseÅ at the College of Veterinary
Medicine Latobatories at Federal University of
Uberlandia, Minas Gerais State, Brazil. The mean values
found were as follows: Total proteins, 4.42 ± 0.55 g/dL,
albumin, 2.50 ±0.2 g/dL, globulins, 1.92 ± 0.35 mg/dL,
albumin/globulin ratio (A/G) 1.55 ±1.46, glucose, 122.9
± 35.2 mg/dL, urea, 61.13 ± 28.35 mg/dL, creatinine,
0.098 ± 0.021 mg/dL, uric acid, 2.08 ± 0.53 mg/dL,
cholesterol, 106.93 ± 21.03 mg/dL, total calcium,7.08
± 1.04 mg/dL, ionic calcium, 4.41 ± 0.60 mg/dL,
phosphorus, 5.21 ± 1.22 mg/dL, calcium/phosphorus
ratio, 1.58 mg/dL ± 0.66, iron, 390.35 ± 116,65 µg/dL,
magnesium, 1.59 ± 0.14, chlorides, 86.40 ± 7.63 mEq/
L, aspartate aminotransferase (AST) 194.56 ± 154.27
U/L, alanineaminotransferase (ALT) 4.04 ± 3.00 U/L,
alkaline phosphatase, 131.13 ± 59.96 U/L, ¡-
glutamiltransferase (GGT) 0.60 ± 0.84 U/L and
tryglicerides, 127.65 ± 100.86 mg/dL. In conclusion,
mean values of blood constituents of Podocnemis
expansa did not show great differences from other
chelonian species. The albumin/globulin ratio, and uric
acid and glucose values were inversely related to body
weight. Thus, the results of this research bring data on
South America River Turtle blood biochemistry raised in
captivity, although new research studies will be necessary
to establish the species reference values.


Bioquímica sanguínea; Podocnemis expansa; Tartaruga-da-Amazônia; Blood biochemistry; Podocnemis Expansa; South American River Turtle