Complete blood count and biochemistry reference intervals for healthy adult sheep in the northeastern United States.

BACKGROUND: Reference intervals (RIs) for routine clinicopathologic data in sheep are sparse. The authors sought to establish hematologic and biochemical RIs from a varied ovine population to improve data interpretation for small ruminant veterinarians. OBJECTIVES: The goal of this study was to establish ovine CBC and biochemistry reference intervals by sampling 120 healthy adult sheep, both male and female, from a variety of breeds, located in the Northeastern United States. METHODS: One hundred and eighteen sheep were included in the CBC RI and 121 sheep were included in the biochemistry panel RI. RESULTS: RIs for 42 CBC and biochemistry analytes were established in accordance with the American Society for Veterinary Clinical Pathology and Clinical Laboratory Standards Institute guidelines. CONCLUSIONS: These RIs are provided to assist small ruminant veterinarians with the interpretation of CBC and biochemistry panel results in sheep.