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  • Title: COMPARISON OF HEMATOLOGIC DIFFERENCES WITH LITHIUM HEPARIN AND DIPOTASSIUM ETHYLENEDIAMINETETRAACETIC ACID IN EUROPEAN STARLINGS (STURNUS VULGARIS).
    Author: Vincent LM, Allender MC, Talley A, Davidson A, Roy L, Durante K, Waligora M, Sander SJ, McEntire M, Schnelle AN.
    Journal: J Zoo Wildl Med; 2023 Oct; 54(3):538-544. PubMed ID: 37817619.
    Abstract:
    Preservation of blood through use of anticoagulants allows delayed assessment of hematologic health and is commonly employed in veterinary health assessments. The two most common anticoagulants are lithium heparin (LH) and dipotassium ethylenediaminetetraacetic acid (EDTA), and their effects can vary widely between species. The hematologic effects of these anticoagulants on blood from European starlings (Sturnus vulgaris) have not been established, and these birds could serve as models for passerine species both in managed collections and in the wild. Blood was drawn from 45 European starlings and immediately divided into either LH or EDTA microtainers. For each sample, packed cell volume (PCV), total solids (TS), and complete blood counts were performed. There were no significant differences between EDTA and LH anticoagulated blood for PCV, white blood cell count (WBC) slide estimates, WBC determined by Leukopet, absolute heterophils, absolute lymphocytes, absolute monocytes, absolute eosinophils, or absolute basophils. Blood anticoagulated with EDTA had higher total solids than blood mixed with LH. For both anticoagulants, Leukopet-measured total WBC were consistently higher than blood film estimates. There were no subjective morphologic differences for WBC and no hemolysis observed in the samples. Thrombocyte clumping was prominent for LH blood samples and minimal for EDTA samples. These results reveal that LH and EDTA are both suitable anticoagulants for use in European starlings, and EDTA may be superior for diagnostic purposes or for qualitative evaluation of thrombocyte quantity.
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