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Abstract
This study aimed to determine the effects of age at first gestation on offspring growth performance, glucose metabolism, and IGF1 concentration. Heifers impregnated by AI from a single bull at 15 months of age (15 M, n = 20), or 27 months of age (27 M, n = 20), and multiparous cows (adult, n = 20) were used. Dams from all groups were managed in a single group during gestation and lactation. Gestational length was longer in the 15 M and 27 M than in adult [ver mas...]
dc.contributor.authorLopez Valiente, Sebastian
dc.contributor.authorRodriguez, Alejandro Martin
dc.contributor.authorLong, Nathan M.
dc.contributor.authorQuintans, Graciela I.
dc.contributor.authorMiccoli, Florencia
dc.contributor.authorLacau Mengido, Isabel M.
dc.contributor.authorMaresca, Sebastian
dc.date.accessioned2022-03-25T10:53:24Z
dc.date.available2022-03-25T10:53:24Z
dc.date.issued2021-11
dc.identifier.issn2076-2615
dc.identifier.otherhttps://doi.org/10.3390/ani11123393
dc.identifier.urihttps://www.mdpi.com/2076-2615/11/12/3393
dc.identifier.urihttp://hdl.handle.net/20.500.12123/11485
dc.description.abstractThis study aimed to determine the effects of age at first gestation on offspring growth performance, glucose metabolism, and IGF1 concentration. Heifers impregnated by AI from a single bull at 15 months of age (15 M, n = 20), or 27 months of age (27 M, n = 20), and multiparous cows (adult, n = 20) were used. Dams from all groups were managed in a single group during gestation and lactation. Gestational length was longer in the 15 M and 27 M than in adult dams (p = 0.009). Bodyweight at birth, at weaning and ADG during lactation were higher in calves from adult dams than in those from 27 M dams, and higher in calves from the latter than in 15 M calves (p < 0.001). Calves from 15 M dams had an increased head circumference/BW ratio compared to calves from 27 M dams, while calves from this latter group had an increased ratio compared to calves from adults (p = 0.005). Body mass index was greater in calves from adults than in those from 15 M and 27 M dams (p = 0.002). Milk production from 15 M and 27 M dams was similar but lower than that from adults (p = 0.03). Calves born from adult dams had greater blood glucose concentrations than those from 15 M and 27 M dams (p < 0.05). Serum IGF1 concentrations were higher in calves from adults than in calves from 15 M and 27 M dams (p = 0.01). This study showed that age at first gestation affects offspring postnatal growth performance, glucose metabolism and IGF1 concentration.es_AR
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherMDPIes_AR
dc.relationinfo:eu-repograntAgreement/INTA/PNPA-1126023/AR./Alimentación de bovinos para carne.es_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceAnimals 11 (12) : 3393 (November 2021)es_AR
dc.subjectNovillaes_AR
dc.subjectHeiferses_AR
dc.subjectGanado de Carnees_AR
dc.subjectBeef Cattlees_AR
dc.subjectCrecimientoes_AR
dc.subjectGrowthes_AR
dc.subjectGlucosaes_AR
dc.subjectGlucosees_AR
dc.subjectEdades_AR
dc.subjectAgees_AR
dc.subjectGestación
dc.subjectPregnancyeng
dc.titleAge at First Gestation in Beef Heifers Affects Fetal and Postnatal Growth, Glucose Metabolism and IGF1 Concentrationes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.description.origenEEA Cuenca del Salado
dc.description.filFil: Lopez Valiente, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentinaes_AR
dc.description.filFil: Rodriguez, Alejandro Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentinaes_AR
dc.description.filFil: Long, Nathan M. Clemson University. Department of Animal and Veterinary Sciences; Estados Unidoses_AR
dc.description.filFil: Quintans, Graciela I. Instituto Nacional de Investigación Agropecuaria (INIA); Uruguayes_AR
dc.description.filFil: Miccoli, Florencia. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Lacau Mengido, Isabel M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental. Laboratorio de Regulación Hipofisaria; Argentinaes_AR
dc.description.filFil: Maresca, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentinaes_AR
dc.subtypecientifico


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