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U.S.Department of Agriculture, Beltsville, MD 20705
and Virginia Polytechnic Institute and State University, Blacksburg 24061
ABSTRACT
Blood samples obtained simultaneously from the jugular and tail (coccygeal) veins during induction of bovine mastitis infection and after administration of 250 IU of adrenocorticotropin did not differ in percentage of hematocrit, concentration of total corticosteroid in plasma, or concentrations of total circulating erythrocytes and leukocytes. Patency of the tail vein cannula was maintained for 1 mo. Tail vein cannulation is a practical alternative to jugular cannulation in cattle.
1 Mention of products or companies of this report does not constitute endorsement by the U. S. Department of Agriculture to the exclusion of others not mentioned.
2 Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus 43210.
3 Genetics and Management Laboratory, U. S. Department of Agriculture, Beltsville, MD 20705.
4 Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061.
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