No CrossRef data available.
Published online by Cambridge University Press: 18 September 2007
* The following is a summary of a Report prepared by Dr. H. Engler, Poultry Specialist, Agriculture Division, Food and Agriculture Organization of the United Nations (F.A.O.), Rome, for the French “Journées Scientifiques de la Volaille et de l'Oeuf,” held in Lyon, 16–18 December, 1953.