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Published online by Cambridge University Press: 11 November 2009
Investigation into the differences between Barneveld and White Leghorn breeds from a genetical and breeding technic point of view. Report to the Committee of the Netherlands Genetic Society regarding breeding tests with poultry in 1926–1927 and 1928–1929. A. L. Hagedoorn. Züchtungskunde, 1930, p.450.
The investigation was carried out in four directions: 1) It was to be ascertained whether a correlation exists between various continuing characteristics appearing in combination in two breeds of poultry (Aziatic and Meditteranean breeds) (coloured eggs, white eggs, white ears, light body weight and early puberty in the other). 2) It was to be investigated whether it was possible to incorporate the qualities of „Brown Egg” and „Early Puberty” in a good laying utility breed. 3) The question was to be treated what gens have influence on the colour of the egg, the colour of the plumage, the colour of the feet etc. 4) Finally data, relating to the value of cross-breeds and their progeny as utility poultry were to be gathered.