Sep 20, 2011

Ruminant Nutrition Symposium: Optimizing Performance of the Offspring: nourishing and managing the dam and postnatal calf for optimal lactation, reproduction, and immunity

Journal of Animal Science
A Bach

Abstract

For several mammalian species, it has been shown that fetal and early postnatal nutrition has a role in long-term lipid and glucose metabolism of the offspring, and it thus also may have consequences on milk yield in the dairy cow. For instance, high-energy diets during the last weeks of pregnancy may result in increased glycemia, which in turn, may alter fetal adipose tissue development. However, most research efforts on management and nutrition of dry cows have focused on minimizing metabolic disorders of the postpartum cow without devoting much attention to potential consequences for the offspring. Similarly, nutritional needs for proper placental development and early fetal growth have received little attention, despite the fact that alterations in placental and fetal development may alter expression of genes participating in homeorhesis of the offspring. Therefore, nutrition of the pregnant cow, both while lactating and dry, should also consider aspects of placental and fetal development that may affect health and performance of the progeny. Similarly, newborn calves and young heifers are fed to ensure a particular growth target without compromising mammary development, although data linking postnatal growth targets with f...Continue Reading

Mentioned in this Paper

Mammary Gland
Reproduction
Bos taurus
Placenta
Lactation, Prolonged
Endocrine System
Lactation
Veterinary Nutritional Physiology
Bos indicus
Fetal Development of the Mammalian Embryo or Fetus

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