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http://dx.doi.org/10.5187/JAST.2004.46.6.975

The Effects of the Glutinicus Supplementation on Performance, Eggshell and Egg Yolk Color of Layers  

Jung, B.Y. (Department of Animal Science and Technology, Chung-Ang University)
Lim, H.S. (Department of Animal Science and Technology, Chung-Ang University)
Paik, I.K. (Department of Animal Science and Technology, Chung-Ang University)
Publication Information
Journal of Animal Science and Technology / v.46, no.6, 2004 , pp. 975-980 More about this Journal
Abstract
An experiment was conducted to determine the effects of dietary supplementation of the yeast Rhodotorula glutinis(Glutinicus) on the performance and egg quality of layers. A total of 360 ISA Brown layers at 72 weeks old were assigned to one of the following 6 diets: control, 25 ppm$\beta$-carotene, 0.50%0, 1%0, 2% and 4% Glutinicus supplemented diets. Each treatment was replicated three times with 20 birds housed in 2 bird cage units. Glutinicus supplementation at the level of 0.5% significantly(p < 0.05) improved egg production and FCR Soft and broken egg production rate decreased as the level of Glutinicus supplementation increased. Eggshell strength was highest in 4 % Glutinicus supplementation. Egg yolk color increased linearly as the level of Glutinicus supplementation increased up to 2% of the diet. It was concluded that Glutinicus supplementation at the level of 0.5% can be recommended for the improvement of egg production while 2.0% can be recommended for egg yolk pigmentation.
Keywords
Glutinicus; Egg production; Soft and broken egg; Egg yolk color;
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