Short-Term Variations of Biochemical Parameters in Racing Pigeons (Columba livia)

Abstract The purpose of this study was to obtain preliminary information on intraindividual variations of biochemical parameters in racing pigeons (Columba livia). Blood was sampled from the basilic vein at 3- to 4-day intervals on 15 occasions in 8 male and 8 female 1- to 3-year-old, healthy racing pigeons. Six clinical chemistry parameters were investigated, including aspartate aminotransferase (AST), creatine kinase (CK), glucose (GLU), lactate dehydrogenase (LDH), total protein (TP), and uric acid. For each parameter, mean, median, standard deviation, minimum, maximum, and coefficient of variation were evaluated for the whole group, as well as for each individual separately. A high degree of individuality, measured by the index of individuality (IoI), for certain clinical chemistry analytes was demonstrated even within a small, well-defined group. Only TP (IoI = 0.5) met the criteria for a very high degree of individuality, which is defined as IoI ≤ 0.6. All other analytes had an IoI between 0.7 (AST ...