Effect of Eggshell Temperature and Oxygen Concentration on Survival Rate and Nutrient Utilization in Chicken Embryos
Roos Molenaar*, Ron Meijerhof†, Ilona van den Anker‡, Marcel Heetkamp‡, Joost van den Borne§, Bas Kemp‡, and Henry van den Brand‡
*HatchTech Incubation Technology B.V., P.O. Box 256, 3900 AG Veenendaal, the Netherlands; †Poultry Performance Plus, Kleine Enkweg 1, 7383 DB Voorst, the Netherlands; ‡Adaptation Physiology Group, Wageningen University, P.O. Box 338, 6700 AH Wageningen, the Netherlands; §Animal Nutrition Group, Wageningen University, P.O. Box 338, 6700 AH Wageningen, the Netherlands.
Environmental conditions such as temperature and O2 concentration affect embryo development that may be associated with modifications in nutrient partitioning during incubation. Additionally, prenatal conditions can affect postnatal nutrient utilization. Using broiler chicken embryos, we studied the effects of eggshell temperature (EST; 37.8 or 38.9°C) and O2 (17, 21 or 25%) applied from d 7 until 19 of incubation in a 2×3 factorial design.