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Lactational estrus induction in the Mexican hairless sow

dc.creatorMota, Daniel
dc.creatorAlonso-Spilsbury, María
dc.creatorMayagoitia, Lilian
dc.creatorTrujillo, María Elena
dc.creatorValencia, Javier
dc.creatorRamírez-Necoechea, Ramiro
dc.date.accessioned2017-06-29T03:56:46Z
dc.date.available2017-06-29T03:56:46Z
dc.date.issued2002es_ES
dc.identifier2801es_ES
dc.identifier.issn0378-4320es_ES
dc.identifier.urihttp://dx.doi.org/10.1016/S0378-4320(02)00073-8es_ES
dc.identifier.urihttp://repositorio.inprf.gob.mx/handle/123456789/4650
dc.language.isoenges_ES
dc.publisherAmsterdam, Elsevier Scientific Pub. Co.es_ES
dc.relation72 (1-2) 115-124 p.es_ES
dc.relationversión del editores_ES
dc.rightsacceso cerradoes_ES
dc.titleLactational estrus induction in the Mexican hairless sowes_ES
dc.typeartículoes_ES
dc.contributor.affiliationAnimal and Agriculture Department, Metropolitan Autonomous University-Xochimilco (UAM-X), Calzada del Hueso 1100, Colonia Villa Quietud, Mexico city, DF 04960, Mexicoes_ES
dc.contributor.emailmaspilsbury@hotmail.comes_ES
dc.relation.jnabreviadoANIM REPROD SCIes_ES
dc.relation.journalAnimal Reproduction Sciencees_ES
dc.identifier.placePaíses Bajoses_ES
dc.date.published2002es_ES
dc.identifier.organizacionInstituto Nacional de Psiquiatría Ramón de la Fuente Muñizes_ES
dc.identifier.eissn1873-2232es_ES
dc.identifier.doi10.1016/S0378-4320(02)00073-8es_ES
dc.description.monthJules_ES
dc.description.abstractotrodiomaThe purpose of this study was to determine the effects on the reproductive performance of the Mexican hairless pig (MHP) while inducing fertile lactational estrus. Lactational estrus was induced on day 8, postpartum, in 20 primiparous sows during two consecutive reproductive cycles. Boar presence and temporary litter withdrawal were used as stimuli. Group I did not receive stimuli (control, C); group II had a 15min boar stimulus (B); group III had litter withdrawal for 4 h (LW), and group IV received both stimuli (B + LW). Fertile estrus was detected by sow behavior, exfoliative vaginal cytology, and 17_-estradiol and progesterone samples. Individual stimuli did not induce fertile lactational estrus; nevertheless, when used together, both stimuli induced 100% of females into estrus, and 80% of them got pregnant while lactating. The partial withdrawal of the litter had a significant and positive effect on the number of live born piglets. Sows pregnant during lactation had shorter reproductive cycles, by not having non-productive days and litter size was greater. Pregnancy induction during lactation allowed the Mexican hairless sow to reduce the period between parturition’s without diminishing the lactation length and litter performancees_ES
dc.subject.koLactational estruses_ES
dc.subject.koMexican hairless piges_ES
dc.subject.koLitter withdrawnes_ES
dc.subject.koLactating-Pregnant sowes_ES
dc.subject.koReproductive performancees_ES


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