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BIOCHEMICAL, HEMATOLOGIC AND COAGULATION VALUES IN THE HEREFORD CALF
Charles H. Edmonds1, M Katharine McMillan, David A. Hughes
1Cardiovascular Surgical Research Laboratories, Texas Heart Institute of St. Luke's Episcopal and Texas Children's Hospitals, and the Department of Pathology, St. Luke's Episcopal Hospital, Texas Medical Center, Houston, Texas.
Cardiovascular Diseases
|January 1, 1975
Summary
Normal Hereford calves exhibit similar biochemical and hematologic values, but have longer prothrombin times than humans. These findings impact anticoagulation strategies for calves requiring mechanical circulatory support.
Area of Science:
- Veterinary Medicine
- Comparative Physiology
- Hematology
Background:
- Establishing baseline hematologic and coagulation parameters is crucial for veterinary care.
- Previous studies have indicated potential age and sex variations in calf physiology.
- Understanding species-specific coagulation differences is vital for safe medical interventions.
Purpose of the Study:
- To determine normal biochemical, hematologic, and coagulation values in Hereford calves aged two to six months.
- To compare these values with existing literature and identify any significant variations.
- To assess the clinical implications of calf coagulation profiles, particularly concerning anticoagulation therapy.
Main Methods:
- Blood samples were collected from normal Hereford calves (both sexes, 2-6 months old).
- Comprehensive biochemical, hematologic, and coagulation assays were performed.
- Results were analyzed and compared to established human and previously reported bovine data.
Main Results:
- Biochemical and hematologic values were consistent across the studied age and sex groups.
- Coagulation parameters, specifically prothrombin time, were significantly longer in calves compared to humans.
- These findings suggest a species-specific difference in coagulation factor activity.
Conclusions:
- Normal Hereford calves demonstrate consistent hematologic and biochemical profiles.
- Markedly prolonged prothrombin times in calves necessitate adjustments to anticoagulation regimens.
- This research provides essential data for managing calves undergoing procedures requiring mechanical circulatory support.