Navegando por Autor "MONTEIRO, Frederico Ozanan Barros"

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Acesso aberto (Open Access)
Intervalos de referência sanguíneos e a influência da idade e sexo sobre parâmetros hematológicos e bioquímicos de ovinos da raça Santa Inês criados na Amazônia Oriental
(Instituto Nacional de Pesquisas da Amazônia, 2015-09) LIMA, Misael Brito de; MONTEIRO, Maria Vivina Barros; JORGE, Ediene Moura; CAMPELLO, Claudio Cabral; RODRIGUES, Luiz Fernando Souza; VIANA, Rinaldo Batista; MONTEIRO, Frederico Ozanan Barros; COSTA, Cícero Temístocles Coutinho
Blood count and biochemical tests are used to diagnose diseases in domestic animals. These tests can be influenced by age, gender, nutrition, breed, species and environmental conditions. Thus, data from one region should not be extrapolated to animals raised in other regions. The objective of this study was to determine the hematological and biochemical values of different ages and genders of Santa Inês sheep, raised in the eastern Amazon. There were examined 91 sheep that were assigned to three groups: G1 (three to six months old, n = 31); G2 (seven to 24 months old, n = 30) and G3 (above 24 months old, n = 30). The blood cell count, white blood count and biochemical determinations were made with an automatic counter and a semi-automatic analyzer, respectively. Mean values were compared using the Tukey test. The number of erythrocytes, the red blood indices, the thrombogram, eosinophils, total protein, urea and creatinine concentrations were influenced by the age of the animals. The erythrocyte coefficient of variation and the creatinine concentration were influenced by gender, and were greater in males. The neutrophil:lymphocyte (N:L) ratio was greater than one for all age groups. This study led to the determination of reference values for sheep raised in the Eastern Amazon and demonstrated that when interpreting hematological and biochemical tests of sheep, age and gender must be considered.
Acesso aberto (Open Access)
Perfil hematológico e bioquímico de búfalos ( Bubalus bubalis ) na Amazônia Oriental
(Universidade Federal do Pará, 2014-12) FONTES, Deiseane Gaia; MONTEIRO, Maria Vivina Barros; JORGE, Ediene Moura; OLIVEIRA, Carlos Magno Chaves; RITTER, Rhuan Amorim; BARBOSA NETO, José Diomedes; SILVA FILHO, Ednaldo da; MONTEIRO, Frederico Ozanan Barros
Complete blood cell count and biochemical testing are exams routinely used in assessing the health of domestic animals, including buffaloes. In the Amazon region, research on this subject is scarce. Thus, the aim of this study was to establish reference intervals for hematology and blood chemistry of Bubalus bubalis raised in eastern Amazon and evaluate the effects of age and sex on biochemical and hematological values. Seventy-three (n=73) Murrah buffaloes were divided into three groups, group 1 (G1, n=22): animals from two to eight months, group 2 (G2, n=23): animals from nine months to two years and group 3 (G3, n=28): animals over two years. Blood counts and biochemical analyzes were performed on automated equipment. The reference intervals were established as recommended by Clinical and Laboratory Standards Institute (CLSI). Tukey and Kruskal-Wallis tests were used to evaluate the effect of gender and age, with differences considered significant when P <0.05. There was influence of age on the values of red blood cells (RBC), packed cell volume (PCV), hemoglobin , leukocytes, lymphocytes, eosinophils, neutrophils, platelets, mean platelet volume (MPV), Mean Corpuscular Volume (MCV), Mean Corpuscular Hemoglobin (HCM), Red Blood Cell Distribution Width (RDW) and the proportion of neutrophil: lymphocyte (N:L). The gender affected MCV and the Platelets Distribution Width (PDW), which were higher (P<0.05) in females, while RDW was higher in males. Comparing the biochemical parameters among age groups, it was found that age influenced the activity of the enzymes aspartate aminotransferase (AST) and alkaline phosphatase (ALP) and the concentrations of creatinine, total protein and direct bilirubin. Creatinine concentrations and direct bilirubin were significantly higher in animals of older age. The gender affected the activity of AST and the concentration of direct bilirubin, which were higher (P <0.05) in males. Hematological and biochemical values set in this study can be used as a reference for buffaloes bred in eastern Amazon.