Rocha, F.Dias, J.Engrola, S.Gavaia, Paulo J.Dinis, Maria TeresaPanserat, S.2014-06-182014-06-182012Rocha F., Dias J., Engrola S., Gavaia P.J., Dinis M.T., Panserat S. 2012 Tolerance of zebrafish embryos to supra-physiologic yolk levels of glucose. XV International Symposium on Fish Nutrition and Feeding. Molde, Norway, 4-7 June 2012.http://hdl.handle.net/10400.1/4360Once spawned and fertilized the oviparous fish eggs operate as closed systems; only respiratory gases, heat and negligible amounts of solutes and water are exchanged freely, as a result of an extremely low permeability of the egg surface membranes. Currently, the opportunities to exert a nutritional stimulus during a stage of high metabolic plasticity, such as fish embryogenesis, are restricted to maternal transfer and the onset of exogenous feeding.engconference object