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The Cornell veterinarian1982; 72(4); 416-426;

A comparison of chemical and electrophoretic methods of serum protein determinations in clinically normal domestic animals of various ages.

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.
Publication Date: 1982-10-01 PubMed ID: 7140303
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  • Comparative Study
  • Journal Article

Summary

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This study investigates the comparison between chemical and electrophoretic methods for serum protein determinations in healthy domestic animals of various ages. The researchers observed that the tested species and the age of the animal could affect the outcomes of these two techniques and the study emphasizes the understanding of these differences for more accurate animal health assessments.

Methodology

The researchers used both the biuret total protein method and a bromcresol green (BCG) albumin method to measure serum proteins in distinct animal species, namely cattle, sheep, ponies, pigs, and ducks. They performed this testing on an Abbott ABA-100 chemistry analyzer. This equipment facilitated a fair and consistent comparison between the two methods.

  • They utilized a refractometer to read total protein levels.
  • Mylar supported cellulose acetate electrophoresis was performed.
  • They calculated Globulins and A/G ratios from the chemical method.

Results

The researchers found several differences in results depending on the method used, the kind of animal, and their age.

  • They saw concordance between the results of albumin, total protein, and A/G ratios in the older cattle, sheep, and ponies obtained by both techniques.
  • There were higher albumin levels and A/G ratios in younger cattle and all the pigs measured through the BCG chemical method compared with the electrophoresis.
  • Ducks showed marginally higher albumin values and A/G ratios through the electrophoretic method, which also exposed the presence of pre-albumin.

Findings and Discussion

The researchers presented electrophoretic patterns supported by mylar cellulose acetate to demonstrate the quality separation provided by these membranes.

  • They offered primary data, mean values, and normal range for the animals examined.
  • They discussed variations in protein levels based on the age of the animals.
  • The study put forward that it’s crucial to understand the differences in results based on the tested species and their age for assessing animal health accurately.

Cite This Article

APA
Green SA, Jenkins SJ, Clark PA. (1982). A comparison of chemical and electrophoretic methods of serum protein determinations in clinically normal domestic animals of various ages. Cornell Vet, 72(4), 416-426.

Publication

ISSN: 0010-8901
NlmUniqueID: 0074245
Country: United States
Language: English
Volume: 72
Issue: 4
Pages: 416-426

Researcher Affiliations

Green, S A
    Jenkins, S J
      Clark, P A

        MeSH Terms

        • Age Factors
        • Animals
        • Animals, Domestic / blood
        • Blood Chemical Analysis / methods
        • Blood Chemical Analysis / veterinary
        • Blood Protein Electrophoresis / methods
        • Blood Protein Electrophoresis / veterinary
        • Blood Proteins / analysis
        • Cattle / blood
        • Ducks / blood
        • Horses / blood
        • Reference Values
        • Sheep / blood
        • Species Specificity
        • Swine / blood

        Citations

        This article has been cited 4 times.
        1. Cray C, Besselsen DG, Hart JL, Yoon D, Rodriguez M, Zaias J, Altman NH. Quantitation of acute phase proteins and protein electrophoresis in monitoring the acute inflammatory process in experimentally and naturally infected mice. Comp Med 2010 Aug;60(4):263-71.
          pubmed: 20819375
        2. Tanaka H, Igarashi T, Lefor AT, Kobayashi E. The effects of fasting and general anesthesia on serum chemistries in KCG miniature pigs. J Am Assoc Lab Anim Sci 2009 Jan;48(1):33-8.
          pubmed: 19245748
        3. Keay G, Doxey DL. A study of the interaction between bromocresol green dye and bovine, ovine and equine serum globulins. Vet Res Commun 1984 Feb;8(1):25-32.
          doi: 10.1007/BF02214691pubmed: 6202048google scholar: lookup
        4. Mesa SM, Megerssa YC. Comparison of biuret and refractometery method for serum total protein measurements in cattle and goat. BMC Res Notes 2024 Aug 23;17(1):234.
          doi: 10.1186/s13104-024-06906-5pubmed: 39180094google scholar: lookup