D. Simeanu

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RESEARCH REGARDING CHEMICAL QUALITY INDEXES OF CONSUMPTION EGGS WITH A DIFFERENT YOLK COLORATION DEGREE

D. Simeanu, I.M. Pop, Cristina Simeanu, Lăcrămioara Madlen Şteflea

Abstract
Research were carried out at SC Avicola Lumina SA Constanţa, on a number of 11,800 of hens from Roso-SL 2000 commercial hybrid, which were divided into four batches (M, E1, E2, and E3). Birds feeding was made with mixed fodder specific for top laying period, mentioning that in the feed of experimental batches were introduced different fodders additives for colouring the yolk as follows: at E1 was used Oro Glo Layer Dry additive in a rate of 150 g/t; at batch E2 was used Kem Glo 5 Dry, in a rate of 1.8 kg/t; at batch E3 was used Carophyll yellow in a rate of 45 g/t. At the end of the experiments we observed that the used additives did not have a significant influence on eggs yield, feed consumption or chemical content of the eggs, but only on intensity of yolk colour, determining an improvement of this parameter with 1.77 up to 2.56 times.

Key words: yolk, colour, chemical content, eggs