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http://dx.doi.org/10.5536/KJPS.2007.34.3.181

Effects of Dietary Delta-Aminolevulinic Acid on Egg Production and Egg Quality in Laying Hens  

Hong, J.W. (DAESANG Famsco)
Shin, S.O. (Department of Animal Resource & Science, Dankook University)
Cho, J.H. (Department of Animal Resource & Science, Dankook University)
Chen, Y.J. (Department of Animal Resource & Science, Dankook University)
Yoo, J.S. (Department of Animal Resource & Science, Dankook University)
Lee, J.H. (Department of Animal Resource & Science, Dankook University)
Jang, H.D. (Department of Animal Resource & Science, Dankook University)
Kim, H.J. (Department of Animal Resource & Science, Dankook University)
Kim, I.H. (Department of Animal Resource & Science, Dankook University)
Publication Information
Korean Journal of Poultry Science / v.34, no.3, 2007 , pp. 181-185 More about this Journal
Abstract
This study was conducted to evaluate the effects of dietary delta-aminolevulinic acid (ALA) on egg production and egg quality in laying hens. A total of 114 (30-wk age) ISA brown commercial hens were used in current trial for 28 days. Dietary treatments included 1) CON (basal diet), 2) 0.05 (basal diet + ALA 0.05%), 3) 0.1 (basal diet + ALA 0.1%) and 4) 0.2 (basal diet + ALA 0.2%). There were four dietary treatments with four replication per treatment and twelve laying hens per replication. During the overall period, egg production was quadratically affected (P=0.01) by ALA supplementation compared with control treatment. Egg weight increased (linear effect, P=0.01; quadratic effect, P=0.01) as the level of delta-aminolevulinic acid supplementation increased in the diets. Yolk color was increased quadratically (P=0.03). The difference of hemoglobin concentration was increased (quadratic effect, P=0.01) as the level of delta-aminolevulinic acid supplementation increased in the diets. In conclusion, the results of the experiment suggest that dietary delta-aminolevulinic acid could affect egg weight, yolk color and hemoglobin concentration in laying hens.
Keywords
$\delta-aminolevulinic$ acid; egg quality; iron; laying hens;
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