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http://dx.doi.org/10.5536/KJPS.2012.39.1.039

Effect of Dietary Supplementation Levels of Spinach Powder and Extract on Lutein Content in Egg Yolk  

Kang, Geun-Ho (National Institute of Animal Science, Rural Development Administration)
Kim, Sang-Ho (National Institute of Animal Science, Rural Development Administration)
Kim, Ji-Hyuk (National Institute of Animal Science, Rural Development Administration)
Kang, Hwan-Ku (National Institute of Animal Science, Rural Development Administration)
Kim, Dong-Wook (National Institute of Animal Science, Rural Development Administration)
Na, Jae-Cheon (National Institute of Animal Science, Rural Development Administration)
Suh, Ok-Suk (National Institute of Animal Science, Rural Development Administration)
Cho, Soo-Hyun (National Institute of Animal Science, Rural Development Administration)
Seong, Pil-Nam (National Institute of Animal Science, Rural Development Administration)
Park, Beom-Young (National Institute of Animal Science, Rural Development Administration)
Jang, Ae-Ra (National Institute of Animal Science, Rural Development Administration)
Kang, Sun-Moon (National Institute of Animal Science, Rural Development Administration)
Kim, Dong-Hun (National Institute of Animal Science, Rural Development Administration)
Publication Information
Korean Journal of Poultry Science / v.39, no.1, 2012 , pp. 39-43 More about this Journal
Abstract
This study was conducted to investigate the effect of dietary supplementation levels of spinach powder and extract on performance, egg quality and lutein content in egg yolk. Laying hens were subjected to one of the following treatments; C, basal diet (BD); T1, BD + 1 ppm lutein from spinach powder; T2, BD + 1 ppm lutein powder from spinach extract; T3, BD + 2 ppm lutein powder from spinach extract; T4, BD + 2 ppm lutein from spinach extract. As a result, performance of laying hens was no significant difference among treatments. T4 had a significantly (p<0.05) higher egg yolk color than the other treatments. As from the lutein content in egg yolk, T4 had a significantly (p<0.05) higher content than the other treatments. Finally, these results suggested that the dietary supplementation for lutein-rich egg production, lutein concentration must be higher than a minimum of 2 ppm. Also, dietary with lutein extract from raw materials was appropriate for lutein-rich egg production than dietary with raw materials.
Keywords
egg; egg yolk; lutein; spinach;
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