02271nab a2200313 i 4500 BR-BrBNA 20250415115928.0 250415b2020 bl.ar|pooa||| 00| 0 eng | BR-BrBNA eng L53 5120 Rua, Miguel Alejandro Silva Ribas, José Antonio Silva Silva, José Frederico Straggiotti Cunha, Isabel Candia Nunes da Bartholazzi Junior, Aylton González, Araceli Rocio Marisel Quirino, Celia Raquel Evaluation of the libido of Pantaneiro stallions Publicação on-line; 18 ref.; 1 illus; 4 tables; Sumaries (En) ABSTRACT - The objective with this study was to evaluate the libido and sexual behavior of Pantaneiro stallions in Brazil in two periods, the rainy and dry seasons. Their sexual behavior was evaluated during mating with mares in estrus, and the libido was scored for statistical analysis. The reaction time and time to mount and ejaculate were 78.1±64.6 s and 289.0 s, respectively. The most relevant events of sexual behavior observed in the Pantaneiro stallions were mounting without erection, mounting without ejaculation, smelling, and vocalizing. In general, the season did not affect the libido of stallions. Even with the high temperatures and humidity, which could cause thermal stress, the stallions showed good libido score during most of evaluations, with some individual differences. Pantaneiro stallions are able to breed mares during the entire year and could facilitate the breeding management to raise the number of Pantaneiro horses of the herds and optimize the use of the stallions during the breeding season, with more females per male. Keywords: horse, reproduction, sexual behavior CAVALO REPRODUÇÃO ANIMAL COMPORTAMENTO SEXUAL FISIOLOGIA ANIMAL 3545 317600 Viçosa-MG Sociedade Brasileira de Zootecnia 1997 2024-4310 Revista Brasileira de Zootecnia (Brazil) 1516-3598 v. 49 p. 1-8; (2020) BR2025000587 https://www.scielo.br/j/rbz/a/6Z8b5kkB9hvbSFhzk9CMBDj/?format=pdf&lang=en ANA 331041 331041