- Volume 21 Issue 6
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Changes in Fatty Acid Profile of Breast and Thigh Muscle of Old Laying Hens as Transferred from Cage to Backyard Raising System
케이지 사육에서 방사사육으로 전환한 산란노계의 가슴살과 대퇴부살에 포함된 지방산 함량의 비교 조사
- Received : 2012.03.12
- Accepted : 2012.05.16
- Published : 2012.06.30
The objective of this study was undertaken to investigate changes in fatty acid profile of breast and thigh muscle of old laying hens as transferred from cage to backyard raising system and to provide basic information on using old laying hens to producers for environmental managements. Overall, percentages of unsaturated fatty acid obtained from breast and thigh muscle with cage and backyard raising system are the most abundant, followed by saturated fatty acid. For breast muscle, there were no differences (P>0.05) between cage rearing system and backyard raising system in saturated fatty acid (SFA) and mono unsaturated fatty acid (MUFA). Poly unsaturated fatty acid (PUFA) and PUFA:SFA ratios were significantly higher in backyard raising systems in comparison with cage rearing systems (P<0.05). No differences (P>0.05) were detected between both rearing systems for MUFA, PUFA, and PUFA:SFA ratios with thigh muscles. SFA in thigh muscle was significantly (P<0.05) higher in cage rearing systems compared with backyard raising systems. In conclusion, using breast and thigh muscle meats from old laying hens as functional foods or investigating impact assessment on the improvement of farm management system may serve as a good management practice to encourage producers.
Cage rearing system;Backyard raising system;Fatty acid profile;Breast muscle;Thigh muscle
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