Bovine Breeds Identification by Trichological Analysis

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Abstract
This study aimed to identify bovine breeds through trichological morphology and morphometry and to validate this technique by comparing it with genetic characterization. Animals from Caracu, Curraleiro Pé-Duro, Nelore, and Bovino Pantaneiro breeds were studied. Morphological and morphometric analyses of the guard hairs were performed. The cuticular pattern was observed on the shaft and the medulla pattern on the shield of the samples. The cattle genetic characterization was accomplished using microsatellite markers. Statistical analyses were performed using R version 3.2.4 software. Pearson’s correlation test showed a high positive and significant correlation between the matrices generated by trichological and genetic analyses (r = 0,996 and p < 0.001). Trichological analysis is a useful method for cattle breed identification. Its potential for identifying other species of interest for animal production should be studied since it is a simple, low-cost, and non-invasive method.
Funding Information
  • Fundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul (Chamada Fundect/CNPq/FNDCT/FAPs/MEC/CAPES n° 18/2010 REDE PRÓ CENTRO OESTE - Termo de Outorga Nº: Nº: 0049/12)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (Edital MCT/CNPq/FNDCT/FAPs/MEC/CAPES/PRO-CENTRO-OESTE nº 31/2010-Nº Processo 407713/2013-1)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Edital MCT/CNPq/FNDCT/FAPs/MEC/CAPES/PRO-CENTRO-OESTE nº 31/2010 - Finance Code 001)

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