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Hemacolor rapid staining of blood smear kit

Manufactured by Merck Group
Sourced in Germany

Hemacolor Rapid staining of blood smear kit is a laboratory product designed to enable the rapid staining of blood smear samples. It provides a standardized and efficient method for the preparation of blood samples for microscopic examination.

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3 protocols using hemacolor rapid staining of blood smear kit

1

Giemsa Staining of Avian Blood Smears

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Blood smears of 192 individual C. livia were fixed with methanol and stained with Giemsa stain following the standard protocol of Hemacolor® Rapid staining of blood smear kit (Merck, Darmstadt, Germany). The slides were first scanned under the microscope at × 400 magnification to determine the presence or absence of haemosporidian blood parasites. For infected individuals, the intensity of infection was then determined by scanning each slide at × 1000 magnification with an oil immersion lens and counting the number of parasites seen within 10,000 erythrocytes.
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2

Blood Smear Analysis and Serum Biomarkers

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Blood smears were stained using the May–Grünwald–Giemsa stain (Hemacolor Rapid staining of blood smear kit; Merck KGaA, Darmstadt, Germany) [4 (link)], following which 100 leukocytes, including granular (heterophils, eosinophils, and basophils) and nongranular (lymphocytes and monocytes), were counted per slide using light microscopy (Leitz Orthoplan, Leitz, Wetzlar, Germany) at 100-times magnification. The heterophil:lymphocyte ratio was calculated [10 (link)]. Serum glucose, uric acid, triglycerides, cholesterol, and non-esterified fatty acids (NEFA) were determined using standard enzymatic colorimetric analysis using an autoanalyzer for clinical chemistry (Cobas 6000/c501; Roche Diagnostics GmbH, Vienna, Austria).
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3

Hematological and Biochemical Profiling of Chickens

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Blood smears were stained using the May-Grünwald-Giemsa stain (Hemacolor Rapid staining of blood smear kit; Merck KGaA, Darmstadt, Germany). A total of 100 leukocytes, including granular (heterophils, eosinophils, and basophils) and nongranular (lymphocytes and monocytes), were counted per slide using light microscopy (Leitz Orthoplan, Leitz, Wetzlar, Germany) at 100-times magnification, and the H-to-L ratio was calculated (Gross and Siegel, 1983) . Serum glucose, uric acid, triglycerides, cholesterol and NEFA were determined by standard enzymatic colorimetric analysis using an autoanalyzer for clinical chemistry (Cobas 6000/c501; Roche Diagnostics GmbH, Vienna, Austria). Chicken specific commercial ELISA kits were used to determine the APPs ovotransferrin (OVT; Cusabio, Wuhan, China) and alpha-1-acid glycoprotein (AGP; Genway Biotech Inc., San Diego, CA, US) in serum according to the manufacturers' instructions. Samples were diluted 2 to 5-fold for both assays depending on the individual sample concentration. The intra-and interassay variability for the OVT and AGP kits were less than 10%, respectively, and the detection limit was 0.039 ng/ml and 3.125 ng/ml. All serum parameters were analyzed together at L1.
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