Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development

Maternal nutrition during pregnancy influences postnatal life of animals; nevertheless, few studies have investigated its effects on the productive performance and reproductive development of heifers. This study evaluated the performance, reproductive development, and correlation between reproductio...

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Autores principales:	Roberta Cavalcante Cracco, Fernando de Oliveira Bussiman, Guilherme Henrique Gebim Polizel, Édison Furlan, Nara Pontes Garcia, Diego Angelo Schmidt Poit, Guilherme Pugliesi, Miguel Henrique de Almeida Santana
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	beef heifer fetal programming Nellore nutrigenetic performance reproduction Genetics QH426-470
Acceso en línea:	https://doaj.org/article/9f88a1a3870e438fb1805140a0aca171
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spelling	oai:doaj.org-article:9f88a1a3870e438fb1805140a0aca1712021-11-30T12:55:10ZEffects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development1664-802110.3389/fgene.2021.737382https://doaj.org/article/9f88a1a3870e438fb1805140a0aca1712021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fgene.2021.737382/fullhttps://doaj.org/toc/1664-8021Maternal nutrition during pregnancy influences postnatal life of animals; nevertheless, few studies have investigated its effects on the productive performance and reproductive development of heifers. This study evaluated the performance, reproductive development, and correlation between reproduction × fat thickness and performance × ribeye area (REA) traits of heifers. We also performed an exploratory genomic association during the rearing period in heifers submitted to fetal programming. The study comprised 55 Nellore heifers born to dams exposed to one of the following nutritional planes: control, without protein-energy supplementation; PELT, protein-energy last trimester, protein-energy supplementation offered in the final third of pregnancy; and PEWG, protein-energy whole gestation, protein-energy supplementation upon pregnancy confirmation. Protein-energy supplementation occurred at the level of 0.3% live weight. After weaning, heifers were submitted to periodic evaluations of weight and body composition by ultrasonography. From 12 to 18 months, we evaluated the reproductive tract of heifers to monitor its development for sexual precocity and ovarian follicle population. The treatments had no effect (p > 0.05) on average daily gain; however, the weight of the animals showed a significant difference over time (p = 0.017). No differences were found between treatments for REA, backfat, and rump fat thickness, nor for puberty age, antral follicular count, and other traits related to reproductive tract development (p > 0.05). The correlation analysis between performance traits and REA showed high correlations (r > 0.37) between REA at weaning and year versus weight from weaning until yearling; however, no correlation was found for reproductive development traits versus fat thickness (p > 0.05). The exploratory genomic association study showed one single-nucleotide polymorphism (SNP) for each treatment on an intergenic region for control and PEWG, and the one for PELT on an intronic region of RAPGEF1 gene. Maternal nutrition affected only the weight of the animals throughout the rearing period.Roberta Cavalcante CraccoFernando de Oliveira BussimanGuilherme Henrique Gebim PolizelÉdison FurlanNara Pontes GarciaDiego Angelo Schmidt PoitGuilherme PugliesiMiguel Henrique de Almeida SantanaFrontiers Media S.A.articlebeef heiferfetal programmingNellorenutrigeneticperformancereproductionGeneticsQH426-470ENFrontiers in Genetics, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	beef heifer fetal programming Nellore nutrigenetic performance reproduction Genetics QH426-470
spellingShingle	beef heifer fetal programming Nellore nutrigenetic performance reproduction Genetics QH426-470 Roberta Cavalcante Cracco Fernando de Oliveira Bussiman Guilherme Henrique Gebim Polizel Édison Furlan Nara Pontes Garcia Diego Angelo Schmidt Poit Guilherme Pugliesi Miguel Henrique de Almeida Santana Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development
description	Maternal nutrition during pregnancy influences postnatal life of animals; nevertheless, few studies have investigated its effects on the productive performance and reproductive development of heifers. This study evaluated the performance, reproductive development, and correlation between reproduction × fat thickness and performance × ribeye area (REA) traits of heifers. We also performed an exploratory genomic association during the rearing period in heifers submitted to fetal programming. The study comprised 55 Nellore heifers born to dams exposed to one of the following nutritional planes: control, without protein-energy supplementation; PELT, protein-energy last trimester, protein-energy supplementation offered in the final third of pregnancy; and PEWG, protein-energy whole gestation, protein-energy supplementation upon pregnancy confirmation. Protein-energy supplementation occurred at the level of 0.3% live weight. After weaning, heifers were submitted to periodic evaluations of weight and body composition by ultrasonography. From 12 to 18 months, we evaluated the reproductive tract of heifers to monitor its development for sexual precocity and ovarian follicle population. The treatments had no effect (p > 0.05) on average daily gain; however, the weight of the animals showed a significant difference over time (p = 0.017). No differences were found between treatments for REA, backfat, and rump fat thickness, nor for puberty age, antral follicular count, and other traits related to reproductive tract development (p > 0.05). The correlation analysis between performance traits and REA showed high correlations (r > 0.37) between REA at weaning and year versus weight from weaning until yearling; however, no correlation was found for reproductive development traits versus fat thickness (p > 0.05). The exploratory genomic association study showed one single-nucleotide polymorphism (SNP) for each treatment on an intergenic region for control and PEWG, and the one for PELT on an intronic region of RAPGEF1 gene. Maternal nutrition affected only the weight of the animals throughout the rearing period.
format	article
author	Roberta Cavalcante Cracco Fernando de Oliveira Bussiman Guilherme Henrique Gebim Polizel Édison Furlan Nara Pontes Garcia Diego Angelo Schmidt Poit Guilherme Pugliesi Miguel Henrique de Almeida Santana
author_facet	Roberta Cavalcante Cracco Fernando de Oliveira Bussiman Guilherme Henrique Gebim Polizel Édison Furlan Nara Pontes Garcia Diego Angelo Schmidt Poit Guilherme Pugliesi Miguel Henrique de Almeida Santana
author_sort	Roberta Cavalcante Cracco
title	Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development
title_short	Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development
title_full	Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development
title_fullStr	Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development
title_full_unstemmed	Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development
title_sort	effects of maternal nutrition on female offspring weight gain and sexual development
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/9f88a1a3870e438fb1805140a0aca171
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Effects of Maternal Nutrition on Female Offspring Weight Gain and Sexual Development

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