Hair Cycle and Dermal Follicular Volume of the Wild Rodent, Agouti (Dasyprocta Prymnolopha), Raised in Captivity in the Northeast Region of Brazil

January 2025 in “ Arquivo Brasileiro de Medicina Veterinária e Zootecnia ”

F.L. Silva, Ana Gabriellen Sousa do Nascimento, Regina Lúcia dos Santos Silva, Hermínio José da Rocha Neto, José Lindenberg Rocha Sarmento, Nelson S. Amorim, Dayseanny de Oliveira Bezerra, Hamilton Antônio de Oliveira Monteiro, M.A.M. Carvalho, Miguel Ferreira Cavalcante Filho, Napoleão Martins Argôlo Neto

The study evaluated the hair cycle and dermal follicular volume in six captive agoutis (three males and three females) over one year in Teresina-PI, Brazil. Hair samples were collected monthly from three body regions, and climatic data were considered. The analysis revealed that the number of telogen hairs was consistently higher than anagen hairs throughout the study, regardless of the season, with males having 98.8% telogen hairs in the dry season and 96.8% in the rainy season, while females had 98.9% and 98.3%, respectively. No significant differences in follicular volume were found between males and females.

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