Placental Regulation of Fetal Growth

  • C. L. Ferrell


Growth of the fetus should be of paramount concern to those involved in animal production. The influence of fetal growth on animal production is manifest in several ways. Birth weight is typically related to neonatal mortality by a “U”-shaped curve. Birth weights lower than optimum are associated with reduced energy reserves, lowered thermoregulatory capability, and increased perinatal mortality. In addition, low birth weight is correlated with low rates of growth postnatally and decreased mature size. Conversely, birth weights that are greater than optimum result in increased dystocia and perinatal mortality as well as decreased rebreeding performance of the dam.


Fetal Growth Placental Tissue Fetal Weight Maternal Circulation Placental Weight 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • C. L. Ferrell
    • 1
  1. 1.Agricultural Research Service, Roman L. Hruska U.S. Meat Animal Research CenterUnited States Department of AgricultureClay CenterUSA

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