Effect of Prenatal Programming on Heifer Development - 30/10/13
, Adam F. Summers, PhD bRésumé |
In beef cattle, the main factors influencing nutrient partitioning between the dam and fetus include age of the dam, number of fetuses, production demand, and environmental stress. These factors play a critical role in programming the fetus for its future environment and available resources. Fetal programming reportedly affects neonatal mortality and morbidity, postnatal growth rate, body composition, health, and reproduction. Two main mechanisms responsible for fetal programming include DNA methylation and histone modifications. Alterations in the genome can be passed through multiple generations. Maternal environment (nutrition, age, physiologic status) can program progeny heifer growth and reproductive performance.
Le texte complet de cet article est disponible en PDF.Keywords : Fetal programming, Maternal nutrition, Epigenetic modification, Beef cow
Plan
| Disclosure: Portions of this review were previously published by the authors in Annual Reviews: Animal Bioscience 1:14.1–25. “Epigenetics: setting up lifetime production of cows by managing nutrition.” |
Vol 29 - N° 3
P. 517-536 - novembre 2013 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?
