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Título
Relationships Between Concentrations of Biological Variables in Eye Fluids and Blood After Exercise in Lidia Cattle
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Acta Veterinaria
Número de la revista
4
Editor
Faculty of Veterinary Medicine, University of Belgrade
Fecha
2018-10-01
ISSN
0567-8315
Abstract
Lidia cattle are a heterogeneous Iberian cattle population known for its natural
aggressiveness and resistance to traditional handling procedures making in vivo
blood sampling and biological fluid collections extremely difficult. Blood variables are
influenced by physical exertion and stressful situations; consequently, post-mortem
blood analysis does not reflect basal concentrations for this species. Nevertheless,
ocular fluids (aqueous and vitreous humour) maintain their stable composition after
death and maybe could be used to estimate ante-mortem blood concentrations. So,
15 bulls which had fought (for 15-20 minutes) and, subsequently after death, blood,
aqueous and vitreous humour were sampled. Total protein, albumin, triglycerides,
uric acid, urea, AST, ALT, GGT, AP, CK, LDH, cholesterol, creatinine, glucose and
lactate were measured. Statistical analysis and correlation coefficients between the three
fluids were carried out. All variables showed high plasma concentrations of glucose,
uric acid, LDH and CK, compared with normal bovine concentrations. Apart from
urea, all plasma concentrations were greater than those found in ocular fluids. The
measured enzymes activities were higher in the vitreous than in the aqueous humour,
but only marked differences in uric acid, lactate, AP and AST were found. There was
a significant correlation between creatinine in the plasma and aqueous humour, and
between albumin and GGT in the plasma and vitreous humour. Glucose, creatinine
and urea exhibit a high correlation between ocular fluids. All plasma concentrations
were clearly modified, however ocular fluids do not seem affected, thus establishing
important correlations between the blood and intraocular fluids.
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