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KMID : 1025520040460060975
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Journal of Animal Science and Technology
2004 Volume.46 No. 6 p.975 ~ p.980
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The Effects of the Glutinicus Supplementation on Performance, Eggshell and Egg Yolk Color of Layers
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Jung B.-Y.
Lim H. S.
Paik In-Kee
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Abstract
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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 β-carotene, 0.5%, 1%, 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.
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KEYWORD
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Glutinicus, Egg production, Soft and broken egg, Egg yolk color
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