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Anais da Escola Superior de Agricultura Luiz de Queiroz

Print version ISSN 0071-1276

An. Esc. Super. Agric. Luiz de Queiroz vol.4  Piracicaba  1947 

A influência dos pigmentos amarelo -laranja de vários alimentos na coloração da gema de ôvo de galinha*



E. A. Graner

Escola Superior de Agricultura "Luiz de Queiroz" Universidade de São Paulo




The effect of different feeds in comparison with that of maize grains on the egg yolk color was observed. It was found that deep orange and yellow orange maize give satisfactory coloration to the yolk, respectively orange and yellow. The most intense color was observed when green feed was used in combination with deep orange maize. Green feeds as chicory, alfafa, cabbage, welsh onion and banana leaves and alfafa or chicory meal proved to be good in giving orange color to the yolk. Yellow yolk was obtained when Guinea grass or carica fruit were used in the ration. Carrot and beet without leaves did not give satisfactory color to the egg yolk. The observations with other feeds are being continued.



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* Trabalho da Seção de Avicultura e Cunicultura

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