Development of structure and function in the mammalian yolk sac. 3. The development of amino acid transport by rabbit yolk sac.

Alanine/metabolism Amino Acids/metabolism Animals Betaine/metabolism Biological Transport Carbon Isotopes Female Fetus/analysis Glycine/metabolism Glycosides/metabolism In Vitro Techniques Inulin/metabolism Isoleucine/metabolism Lysine/metabolism Maternal-Fetal Exchange Methionine/metabolism Phenylalanine/metabolism Placenta/metabolism Pregnancy Pregnancy, Animal Proline/metabolism Quaternary Ammonium Compounds/metabolism Rabbits Valine/metabolism

Amino Acids Carbon Isotopes Glycosides Quaternary Ammonium Compounds Isoleucine Betaine Phenylalanine Inulin Proline Methionine Valine Lysine Alanine Glycine