title: Sexual behavior of Pecari tajacu (Cetartiodactyla: Tayassuidae) during periovulatory and early gestation periods.
abstract: The goal of this study was to describe the sexual behavior in female and male collared peccary. Twenty females and twelve males were monitored in familiar and non-familiar units for two 60 days periods. During both phases, we recorded 2747 sexual interactions initiated by 20 different females toward males and 4461 sexual interactions initiated by 12 males toward females. The frequency of sexual interactions initiated per female significantly increased from proestrus to estrus, and they were significantly more frequently courted. Females initiated olfactory inspections 15.42 times more and were mounted 22.6 times more during estrus than during proestrus. Nulliparous and primiparous females copulated only when exposed to non-parental males. After estrus, the frequency of sexual interactions received by females sharply decreased. One mating event was recorded during the first gestation week and 31 mountings were observed after the second week. In conclusion, the behavioral monitoring is a useful procedure for the recognition of estrus. Our results suggest that ovulation may be associated with the end of the estrus, which will support future work in assisted reproduction in this species. To promote good handling practices, females of reproductive age should be removed from their family unit of origin.
authors.affiliation: Universidade Federal do Pará, Instituto de Ciências Biológicas, Laboratório de Reprodução Animal, Belém, PA, Brazil. Electronic address: suleima_silva@yahoo.com.br.
authors.forename: Suleima do Socorro Bastos
authors.initials: Sdo S
authors.lastname: da Silva
authors.affiliation: Universidade Estadual de Santa Cruz, Departamento de Ciências Biológicas, Ilhéus, BA, Brazil. Electronic address: yvonnick@uesc.br.
authors.forename: Yvonnick
authors.initials: Y
authors.lastname: Le Pendu
authors.affiliation: Universidade Federal do Pará, Instituto de Ciências Biológicas, Laboratório de Reprodução Animal, Belém, PA, Brazil. Electronic address: ohashi@ufpa.br.
authors.forename: Otavio Mitio
authors.initials: OM
authors.lastname: Ohashi
authors.affiliation: Universidade Estadual Paulista Júlio de Mesquita Filho, FMVZ, Departamento de Reprodução Animal e Radiologia Veterinária, Botucatu, SP, Brazil. Electronic address: euniceoba@fmvz.unesp.br.
authors.forename: Eunice
authors.initials: E
authors.lastname: Oba
authors.affiliation: Empresa Brasileira de Pesquisa Agropecuária - Embrapa Amazônia Oriental, Belém, PA, Brazil. Electronic address: natalia.albuquerque@embrapa.br.
authors.forename: Natália Inagaki
authors.initials: NI
authors.lastname: de Albuquerque
authors.affiliation: Empresa Brasileira de Pesquisa Agropecuária - Embrapa Livestock Southeast, São Carlos, SP, Brazil. Electronic address: alexandre.garcia@embrapa.br.
authors.forename: Alexandre Rossetto
authors.initials: AR
authors.lastname: Garcia
authors.affiliation: Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Edifici V, E-08193, Bellaterra, Barcelona, Spain. Electronic address: pedrogines.mayor@uab.es.
authors.forename: Pedro
authors.initials: P
authors.lastname: Mayor
authors.affiliation: Universidade Federal do Pará, Instituto de Ciências Biológicas, Laboratório de Reprodução Animal, Belém, PA, Brazil. Electronic address: diva@ufpa.br.
authors.forename: Diva Anelie
authors.initials: DA
authors.lastname: de Araujo Guimarães
mesh_terms: D000818:Animals; D001188:Artiodactyla / Q000502:physiology*; D003307:Copulation / Q000502:physiology; D030762:Estrous Cycle / Q000502:physiology*; D005260:Female; D008297:Male; D011247:Pregnancy; D012098:Reproduction / Q000502:physiology*; D012726:Sexual Behavior, Animal / Q000502:physiology*
keywords: Behavior; Collared peccary; Estrus; Pregnancy; Reproduction