02235nab a2200301 i 4500003000900000005001700009008004100026040001800067072001400085100003300099100003300132100004100165100003500206100003200241100003900273100002700312245005300339500007000392520111200462650001101574650002601585650002501611650002201636773017001658856007801828942000801906999001901914BR-BrBNA20250415115928.0250415b2020    bl.ar|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aL53b5120  aRua, Miguel Alejandro Silva   aRibas, José Antonio Silva   aSilva, José Frederico Straggiotti   aCunha, Isabel Candia Nunes da   aBartholazzi Junior, Aylton   aGonzález, Araceli Rocio Marisel   aQuirino, Celia Raquel   aEvaluation of the libido of Pantaneiro stallions  aPublicação on-line; 18 ref.; 1 illus; 4 tables; Sumaries (En)  a

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  aCAVALO  aREPRODUÇÃO ANIMAL  aCOMPORTAMENTO SEXUAL  aFISIOLOGIA ANIMAL0 035459317600dViçosa-MG Sociedade Brasileira de Zootecnia  1997o2024-4310tRevista Brasileira de Zootecnia (Brazil)x1516-3598gv. 49 p. 1-8; (2020)wBR2025000587  uhttps://www.scielo.br/j/rbz/a/6Z8b5kkB9hvbSFhzk9CMBDj/?format=pdf&lang=en  cANA  c331041d331041