Raising chinchilla (Chinchilla laniger) for commercial purpose has increased significantly; however, hematological and serum biochemical reference values have not yet been determined for chinchillas raised in south Brazil. Establishing blood cells and serum biochemistry reference values might be helpful to evaluate health status of chinchillas and might be used as a tool by clinicians. The purpose of this study was to determine the reference values for blood cells and serum biochemistry of Chinchilla laniger. Blood samples were collected by cardiac puncture from 16 adult males, at the time they were killed to remove the fur coat, and from 8 adult males anesthetized with ketamine and xylazine. Blood cell counts and serum biochemistry analysis were performed using standard techniques and the results were expressed as mean ± SEM. Analysis of blood parameters from post-mortem cardiac punctured and from anesthetized chinchillas indicated that blood samples from anesthetized chinchillas had higher PCV, Hemoglobin, MCHC and WBC (P < .05); in contrast, had lower levels of monocytes, basophils and eosinophils (P < .05). Serum biochemical parameters were less affected by sampling method: anesthetized chinchillas had lower levels of urea, glucose and triglycerids (P < .05). The data obtained might be useful as a parameter to monitor the health status of chinchillas raised in south Brazil.
RESUMOO presente trabalho teve por objetivo o estudo do método fotométrico de chama para a determinação do potássio em fertilizantes quando aplicado em extrato simplesmente aquoso e em extrato aquoso contendo oxalato de amônio, comparativamente com o método volumétrico do tetrafenilborato de sódio (TFBS) .Os dados obtidos mostraram que o método fotométrico de chama baseado no emprego de extratos simplesmente aquosos de fertilizantes apresentou resultados sempre inferiores ao obtidos pelo método do T.F.B.S. e seu relativo foi, em média, de -0,76% nos fertilizantes simples e em torno de -3% nas misturas de fertilizantes. O método fotométrico de chama baseado no emprego de extratos aquosos contendo oxalato de amônio apresentou resultados bastante próximos aos obtidos com o método do T.F.B.S. e seu erro relativo foi, em média, de -0,35% nos fertilizantes simples e em torno de 0,7% nas misturas de fertilizantes, mas com a alternância entre positivo e negativo. A pre¬ ciasão foi elevada, mas esmerado cuidado é exigido nas diluições.
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