Effects of maternal nutrition on pregnancy on progeny quality - a review

• Autor(a) principal: Klein, John Lenon
• Data de Publicação: 2021
• Outros Autores: Machado, Diego Soares, Adams, Sander Martinho, Alves Filho, Dari Celestino, Brondani, Ivan Luiz
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/12654
• topic: Miogênese; Músculo esquelético; Novilhos; Programação fetal; Bovinos de corte.; Beef cattle; Fetal programming; Myogenesis; Skeletal muscle; Steers.; Miogénesis; Músculo esquelético; Novillos; Programación fetal; Ganado vacuno.

The aim of the study was, through a literature review, to evaluate the effects of nutrition of beef cows during pregnancy on the quality and performance of the progeny after birth. In recent years, numerous studies have been carried out to assess the effects of maternal nutrition during pregnancy (fetal programming) on ​​progeny productivity. In view of the results presented, it is clearly elucidated that the nutritional conditions of the pregnant uterus alter health, physiology, metabolism and, consequently, the postpartum performance of the progeny in several ways. These changes may vary according to the degree and intensity of the nutritional challenge, the moment of this challenge during pregnancy and the adaptive capacity of pregnant cows to partition nutrients to the fetus. The literature suggests that the effects of fetal programming are more easily seen in the initial months of the offspring's life, disappearing with advancing age, however, the nutritional restriction of the cow during pregnancy can also lead to the formation of an individual with greater capacity to adaptation and better prepared to survive in more challenging environments in postnatal life. In addition, the formation of an “economic” phenotype may result in a compensatory performance during the adult life of cow calves that have undergone nutritional challenges during pregnancy.