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Bovine Breeds Identification by Trichological Analysis.

Gisele Aparecida Felix1, Maria Clorinda Soares Fioravanti2, Martino Cassandro3

  • 1School of Veterinary Medicine, University Centre of Grande Dourados Region, Dourados 79824-900, Brazil. gizootec@gmail.com.

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Summary

Trichological analysis of bovine guard hairs accurately identifies cattle breeds, matching genetic characterization results. This simple, non-invasive method offers a low-cost approach for cattle breed identification.

Keywords:
animal genetic resourcesbreed markergenetic characterizationguard hairnon-invasive

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Area of Science:

  • Veterinary Science
  • Animal Genetics
  • Morphology

Background:

  • Accurate identification of bovine breeds is crucial for livestock management and conservation.
  • Traditional methods may be invasive or costly.
  • Trichological analysis offers a potential alternative for breed identification.

Purpose of the Study:

  • To identify bovine breeds using trichological morphology and morphometry.
  • To validate trichological analysis by comparing it with genetic characterization.
  • To assess the potential of trichology for identifying other animal production species.

Main Methods:

  • Morphological and morphometric analyses of guard hairs from Caracu, Curraleiro Pé-Duro, Nelore, and Bovino Pantaneiro breeds.
  • Observation of cuticular and medulla patterns on hair samples.
  • Genetic characterization using microsatellite markers.
  • Statistical analysis using Pearson's correlation test.

Main Results:

  • A high positive and significant correlation (r = 0.996, p < 0.001) was found between trichological and genetic analyses.
  • Trichological analysis demonstrated effectiveness in differentiating between the studied bovine breeds.
  • The method proved to be simple, low-cost, and non-invasive.

Conclusions:

  • Trichological analysis is a reliable and effective method for bovine breed identification.
  • The technique's simplicity and low cost make it a valuable tool for animal production.
  • Further studies should explore its application in identifying other species of interest.