Hematology and plasma chemistry reference intervals for cultured tilapia (Oreochromis hybrid) |
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| Authors: | Hrubec Terry C Cardinale Jenifer L Smith Stephen A |
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| Institution: | Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061. |
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| Abstract: | Abstract: Tilapia are a commonly aquacultured fish yet little is known about their normal physiology and response to disease. In this study we determined the results of complete hematologic (n = 40) and plasma biochemical profiles (n = 63) in production tilapia ( Oreochromis hybrids). The fish were raised in recirculating systems with a high stocking density (120 g/L), and were in the middle of a 15-month production cycle. Blood was analyzed using standard techniques, and reference intervals were determined using nonparametric methods. Non-production tilapia (n = 15) from low-density tanks (4 g/L) also were sampled; the clinical chemistry results were compared to reference intervals from the fish raised in high-density tanks. Differences were noted in plasma protein, calcium and phosphorus concentrations, such that reference intervals for high-density production tilapia were not applicable to fish raised under different environmental and management conditions. |
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| Keywords: | Clinical chemistry fish hematology reference intervals tilapia |
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