Reproductive and metabolic response and body changes in ewes fed with two energy levels

Respuesta reproductiva, metabólica y cambios corporales en ovejas alimentadas con dos niveles de energía

dc.creatorRodríguez-Magadán, Héctor Maximino
dc.creatorHernández-Bautista, Jorge
dc.creatorCadena-Villegas, Said
dc.creatorSalinas-Rios, Teodulo
dc.creatorSilva-Rodríguez, Edmundo Atxayacatl
dc.creatorTorres-Aguilar, Honorio
dc.creatorSosa-Montes, Eliseo
dc.date2021-05-02
dc.date.accessioned2022-12-15T14:43:32Z
dc.date.available2022-12-15T14:43:32Z
dc.identifierhttps://revistamvz.unicordoba.edu.co/article/view/e2129
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5353440
dc.descriptionObjective. To evaluate the reproductive response, metabolic state and body changes in Dorper and Katahdin ewes supplemented with 2 energy levels prior to insemination. Materials and methods. The animals used in this experiment were 14 Katahdin and 13 Dorper ewes distributed in two treatments, in which estrus had been synchronized. Fourteen days prior to synchronization of estrus, the ewes were distributed in two treatments according to the energy level of the diet, T1:2.0 and T2:2.5 Mcal kg-1 of ME. Feeding consisted of 14 days of adaptation and 14 of feeding with integral diet. At the start and finish of each study, measurements were made of backfat thickness, area of the ribeye, body weight, and glucose and insulin concentrations. The principal reproductive parameters were measured, such as response to estrus, percentage of gestation and prolificity. Analyses of variance were made along with ji-squared tests to determine the effect of the energy level and genotype. Results. The genotype and energy level did not affect any of the variables measured, although it was found that with both energy levels there was an increase in glucose concentrations, as well as an increase in weight, body fat and area of the rib-eye. Conclusions. Because there was no difference in the reproductive parameters and body changes with feeding in the 2 energy levels, it is preferable to use the feed with 2.0 Mcal kg-1 of ME, given that it reduces costs.en-US
dc.descriptionObjetivo. Evaluar la respuesta reproductiva, estado metabólico y cambios corporales en ovejas Dorper y Katahdin suplementadas con dos niveles de energía previo al empadre. Materiales y métodos. Se utilizaron 14 hembras Katahdin y 13 Dorper distribuidas en 2 tratamientos a las cuales se les sincronizó el celo. Catorce días previo a la sincronización de estros, las ovejas se distribuyeron en 2 tratamientos de acuerdo con el nivel de energía en la dieta, T1:2.0 y T2:2.5 Mcal kg-1 de EM. La alimentación abarcó 14 días de adaptación y 14 de alimentación con dieta integral. Al inicio y al final del estudio se midió el espesor de grasa dorsal, área del ojo de la costilla, peso corporal y concentraciones de glucosa e insulina. Se midieron los principales parámetros reproductivos como respuesta a estro, porcentaje de gestación y prolificidad. Se realizaron análisis de varianza y pruebas de ji cuadrada para determinar el efecto del nivel de energía y el genotipo. Resultados. El genotipo y el nivel de energía no afectaron ninguna de las variables medidas, aunque se encontró que con ambos niveles de energía existió un incremento en las concentraciones de glucosa, así como una ganancia en peso, grasa corporal y área del ojo de la costilla. Conclusiones. Debido a que no existió diferencia en los parámetros reproductivos y cambios corporales en ovejas al alimentarlas con los dos niveles de energía, es mejor la alimentación con 2.0 Mcal kg-1 de EM, ya que reduce costos de alimentación.es-ES
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dc.languagespa
dc.languageeng
dc.publisherUniversidad de Córdobaes-ES
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dc.rightsDerechos de autor 2021 Héctor Maximino Rodríguez-Magadán, Jorge Hernández-Bautista, Said Cadena-Villegas, Teodulo Salinas-Rios, Edmundo Atxayacatl Silva-Rodríguez, Honorio Torres-Aguilar, Eliseo Sosa-Monteses-ES
dc.sourceJournal MVZ Cordoba; Vol. 26 No. 3 (2021): Journal MVZ Cordoba Volume 26(3) September-December 2021; e2129en-US
dc.sourceRevista MVZ Córdoba; Vol. 26 Núm. 3 (2021): Revista MVZ Córdoba Volumen 26(3) Septiembre-Diciembre 2021; e2129es-ES
dc.source1909-0544
dc.source0122-0268
dc.source10.21897/rmvz.v26.n3.2021
dc.subjectBody conditionen-US
dc.subjectestrusen-US
dc.subjectfertilityen-US
dc.subjectflushingen-US
dc.subjectfaten-US
dc.subjectCondición corporales-ES
dc.subjectestroes-ES
dc.subjectfertilidades-ES
dc.subjectflushinges-ES
dc.subjectgrasaes-ES
dc.titleReproductive and metabolic response and body changes in ewes fed with two energy levelsen-US
dc.titleRespuesta reproductiva, metabólica y cambios corporales en ovejas alimentadas con dos niveles de energíaes-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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