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  • Title: A comparison of chemical and electrophoretic methods of serum protein determinations in clinically normal domestic animals of various ages.
    Author: Green SA, Jenkins SJ, Clark PA.
    Journal: Cornell Vet; 1982 Oct; 72(4):416-26. PubMed ID: 7140303.
    Abstract:
    The biuret total protein method and a bromcresol green (BCG) albumin method were used on the Abbott ABA-100 chemistry analyzer to assay serum proteins in clinically normal cattle, sheep, ponies, pigs, and ducks. Total proteins were also read on a refractometer and mylar supported cellulose acetate electrophoresis was performed. Globulins and A/G ratios were calculated from the chemical method and the results compared with the electrophoretic method. Total protein, albumin and A/G ratios in the ponies, sheep and older cattle were in agreement between the two methods. The younger cattle and all the pigs had higher albumin levels and A/G ratios with the chemical BCG method. Ducks had slightly higher albumin values and A/G ratios with the electrophoretic method and the presence of pre-albumin was detected. Typical mylar supported cellulose acetate electrophoretic patterns are presented which show the excellent separation using these membranes. Means and range for normal animals are given and changes of proteins with age are discussed.
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