Performance and muscle lipogenesis of calves born to Nellore cows with different residual feed intake classification

dc.creatorRollo de Paz, Ana Carolina Almeida
dc.creatorLadeira, Márcio Machado
dc.creatorTeixeira, Priscilla Dutra
dc.creatorCanesin, Roberta Carrilho
dc.creatorBatalha, Camila Delveaux Araújo
dc.creatorMercadante, Maria Eugênia Zerlotti
dc.creatorBonilha, Sarah Figueiredo Martins
dc.date2022-11-07T16:47:52Z
dc.date2022-11-07T16:47:52Z
dc.date2022-07-29
dc.date.accessioned2023-09-28T20:05:18Z
dc.date.available2023-09-28T20:05:18Z
dc.identifierROLLO DE PAZ, A. C. A. et al. Performance and muscle lipogenesis of calves born to Nellore cows with different residual feed intake classification. PLoS One, [S.l.], v. 17, n. 7, p. 1-18, July 2022. DOI: 10.1371/journal.pone.0272236.
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/55434
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9044141
dc.descriptionThis study aimed to evaluate relationships among maternal residual feed intake (RFI) with growth performance and expression of genes involved in lipid metabolism in offspring of Nellore cattle. Fifty-three cows classified as negative or positive RFI by genomic prediction were exposed to fixed-time artificial insemination (FTAI) protocols at 2 and 3 years of age using semen from the same bull. In the first year, cows gestated under grazing conditions and nursed their calves in the feedlot. In the second year, the opposite occurred. Cows were weighed every 28 days during pregnancy and calves were weighed at birth and every 28 days until weaning. Ultrasound images were collected from the carcass of cows and calves. Muscle gene expression was evaluated in calves at birth and weaning. Data were analyzed by year considering the fixed effects of RFI class and FTAI protocol for variables measured in cows, and RFI class, FTAI protocol and sex for variables measured in calves. There was no effect of maternal RFI on calves performance in the first year. Lower expression of FABP4 gene and trend towards lower expression of SREBF1 and LPL genes were detected in samples collected after birth from calves born to negative RFI cows, indicating that adipogenesis was reduced during the fetal and neonatal period. In the second year, negative RFI cows had greater subcutaneous fat thickness than positive RFI cows, and their calves tended to be heavier at birth and to have less rump fat thickness at weaning. No significant differences in expression of genes studied were detected between cow RFI classes. Nellore cows classified as negative RFI consume less feed and produce calves whose growth potential is similar to that of calves produced by positive RFI cows.
dc.formatapplication/pdf
dc.languageen_US
dc.publisherPLOS
dc.rightsAttribution 4.0 International
dc.rightsacesso aberto
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.sourcePLoS One
dc.subjectResidual feed intake (RFI)
dc.subjectNellore cattle
dc.subjectGenes
dc.titlePerformance and muscle lipogenesis of calves born to Nellore cows with different residual feed intake classification
dc.typeArtigo


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