Chapter 129
Hematology of Salmonids
Jere Stern,
Jere Stern
Search for more papers by this authorJere Stern,
Jere Stern
Search for more papers by this authorBook Editor(s):Marjory B. Brooks DVM, DACVIM,
Kendal E. Harr DVM, MS, DACVP,
Davis M. Seelig DVM, PhD, DACVP,
K. Jane Wardrop DVM, MS, DACVP,
Douglas J. Weiss DVM, PhD, DACVP,
Marjory B. Brooks DVM, DACVIM
Director, Comparative Coagulation Section
Animal Health Diagnostic Center, Cornell University, Ithaca, New York, USA
Search for more papers by this authorKendal E. Harr DVM, MS, DACVP
URIKA, LLC, Mukilteo, Washington, USA
Search for more papers by this authorDavis M. Seelig DVM, PhD, DACVP
Associate Professor, Clinical Pathology
Department of Veterinary Clinical Sciences, University of Minnesota, College of Veterinary Medicine, St. Paul, Minnesota, USA
Search for more papers by this authorK. Jane Wardrop DVM, MS, DACVP
Professor and Director, Clinical Pathology Laboratory
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
Search for more papers by this authorDouglas J. Weiss DVM, PhD, DACVP
Emeritus Professor
College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota, USA
Search for more papers by this authorFirst published: 04 March 2022
Summary
Many of the most commonly farmed fishes are salmonids, particularly Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss). While the use of automated hematology in these species is limited by nucleated erythrocytes and thrombocytes, hematology can be a useful diagnostic technique in fisheries management. Unfortunately, the paucity of valid baseline clinical information including for salmonid hematology has limited its diagnostic utility. As all salmonid blood cells are nucleated with significant overlap in cell size between cellular lineages, automated methodologies utilized in mammalian samples have limited use in fish. Primitive hematopoiesis begins in the yolk sac blood islands at 2 days post fertilization in rainbow trout (O. mykiss) and then in the intermediate cell mass, from days 7–12 to day 15 post fertilization in rainbow trout. Currently, no salmonid reference intervals generated in concordance with the American Society for Veterinary Clinical Pathology reference interval guidelines exist for clinical use.
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