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시금치 분말 및 농축액의 첨가 급여 수준이 난황 내 루테인 함량에 미치는 영향
강근호(Geunho Kang),김상호(Sangho Kim),김지혁(Jihyuk Kim),강환구(Hwanku Kang),김동욱(Dongwook Kim),나재천(Jaecheon Na),서옥석(Oksuk Suh),조수현(Soohyun Cho),성필남(Pilnam Seong),박범영(Beomyoung Park),장애라(Aera Jang),강선문(Sunmoon Ka 韓國家禽學會 2012 韓國家禽學會誌 Vol.39 No.1
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.