Bovine breeds identification by trichological analysis.

• Autor(a) principal: FELIX, G. A.
• Data de Publicação: 2019
• Outros Autores: FIORAVANTI, M. C. S., CASSADRO, M., TORMEN, N., QUADROS, J., JULIANO, R. S., EGITO, A. A. do, MOURA, M. I. de, PIOVEZAN, U.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1117973; https://doi.org/10.3390/ani9100761
• topic: Breed marker; Genetic characterization; Raça; Bovino; Genética Animal; Animal genetic resources; Cattle breeding

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.