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Financial and reproductive performance of lactating-pregnant Creole sows

dc.creatorMota-Rojas, D.
dc.creatorAlonso-Spilsbury, M.
dc.creatorTrujillo, O.M.E
dc.creatorMayagoitia N., L.
dc.creatorRamírez-Necoechea, R.
dc.creatorEscobar, I.I.
dc.creatorValencia, M.J.
dc.date.accessioned2017-06-29T04:30:41Z
dc.date.available2017-06-29T04:30:41Z
dc.date.issued2003es_ES
dc.identifier400es_ES
dc.identifier.issn0121-3784es_ES
dc.identifier.urihttp://www.lrrd.org/lrrd15/2/mota152.htmes_ES
dc.identifier.urihttp://repositorio.inprf.gob.mx/handle/123456789/5091
dc.language.isoenges_ES
dc.relation15 (2) [1-14] p.es_ES
dc.relationversión del editores_ES
dc.rightsacceso cerradoes_ES
dc.titleFinancial and reproductive performance of lactating-pregnant Creole sowses_ES
dc.typearticlees_ES
dc.contributor.affiliationUniversidad Autónoma Metropolitana-Xochimilco. DPAA. Área de Investigación: Ecodesarrollo de la Producción Animal Calz. del Hueso 1100. Col. Villa Quietud, México, D. F. 04960es_ES
dc.contributor.emaildmota40@hotmail.comes_ES
dc.relation.jnabreviadoLRRDes_ES
dc.relation.journalLivestock Research for Rural Developmentes_ES
dc.identifier.placeColombiaes_ES
dc.date.published2003es_ES
dc.identifier.organizacionInstituto Nacional de Psiquiatría Ramón de la Fuente Muñizes_ES
dc.description.abstractotrodiomaGenerally sows are in anoestrus during lactation, however there are situations that may alter their state by manifesting signs of oestrus and ovulation. A practical advantage of this finding is the reduction of the reproductive cycle. The objective of this study was to evaluate the productivity of the lactating Mexican Hairless sows, which were induced to get pregnant by using natural stimuli, eight days after farrowing. To analyze the effects of the removal of the litter and the presence of a boar on the reproductive performance, one, two and three way ANOVA analyses were run; also, post hoc comparisons were done using Tukey and Kruskal-Wallis tests. Twenty sows were distributed in 4 experimental groups. One hundred per cent of the sows treated with both stimuli (presence of a boar and partial removal of the litter), presented oestrus and 80% of them became pregnant, obtaining 2.8 farrowings per sow per year. The removal of the litter significantly (p<0.01) increased the number of piglets born alive. Profit percentage for each extra weaned piglet for sows receiving both stimuli was 29.5%. Non-productive days were reduced, so was the interval between farrowings; moreover, 2.3 extra piglets per sow per year were obtained in comparison with the other groups. We conclude that inducing gestation during lactation with the boar and litter withdrawn is an alternative that allows an improvement in the sow productivity; the productive cycle was reduced without diminishing the period of lactationes_ES
dc.subject.koLactational oestruses_ES
dc.subject.koMexican hairless pigses_ES
dc.subject.koProductive performancees_ES


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