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Hematology and Plasma Chemistry Values for Production Tilapia (Oreochromis hybrid) Raised in a Recirculation System

Authors:

T.C. Hrubec ,

Aquatic Medicine Laboratory, Virginia-Maryland Regional College of Veterinary Medicine, Department of Biomedical Sciences and Pathobiology, Duck Pond Drive, Blacksburg, VA 24061, US
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S.A. Smith

Aquatic Medicine Laboratory, Virginia-Maryland Regional College of Veterinary Medicine, Department of Biomedical Sciences and Pathobiology, Duck Pond Drive, Blacksburg, VA 24061, US
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Abstract

Tilapia are a frequently aquacultured fish, yet little is known about their normal physiology and response to disease. To assess specific diseases in mammals, blood constituents are routinely analyzed and compared to previously determined standardized values. Research to establish hematologic values for normal healthy fish is required before blood analysis can be used for diagnostic purposes in fishes. This study determined hematology and plasma chemistry values for production tilapia (Oreochromis hybrids) raised in a recirculation system. Using standard clinical techniques, the following hematologic parameters were determined: PCV (packed cell volume), plasma protein and MCV (mean cell volume) values; and erythrocyte, leukocyte, lymphocyte (small and large), neutrophil, monocyte, eosinophil, thrombocyte-like-cell, and thrombocyte numbers. Additionally, the following plasma chemistry values were determined: total protein, albumin, globulin, creatinine, total bilirubin, ALP (alkaline phosphatase), AST (aspartate aminotransferase), sodium, potassium, chloride, calcium, phosphorus, magnesium, glucose, cholesterol, ammonia and osmolality. Analysis of blood parameters can enhance production of hybrid tilapia by providing a means for the early detection of infectious diseases, and by assisting in the identification of sub-clinical conditions affecting production performance.
How to Cite: Hrubec, T.C. and Smith, S.A., 2000. Hematology and Plasma Chemistry Values for Production Tilapia (Oreochromis hybrid) Raised in a Recirculation System. International Journal of Recirculating Aquaculture, 1(1). DOI: http://doi.org/10.21061/ijra.v1i1.1360
Published on 01 Jun 2000.
Peer Reviewed

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