Effects of Feeding Citrus Byproducts on Nutritional Properties of Korean Native Chicken Eggs
2008
Yang, S.J. (Jeju Animal Industry Promotion Institute, Jeju, Republic of Korea) | Jung, I.C. (Daegu Technical College, Daegu, Republic of Korea) | Moon, Y.H. (Kyungsung University, Busan, Republic of Korea), E-mail: [email protected]
In this study, the effects of feeding citrus byproducts on nutritional properties of Korean native chicken eggs were investigated. Two samples of Korean native chicken eggs were used for this study: T0 (Eggs of chickens that were not fed with citrus byproducts until they became 30 weeks old) and T1 (Eggs of chickens that were fed with 4% citrus byproducts when they were between 17 and 30 weeks old). There was no statistically meaningful difference between T0 and T1 in terms of various properties, such as general components of egg albumen and yolk, total structural amino acid, and total free amino acid. Also, no significant difference was noticed between T0 and T1 in terms of various components of egg yolk, such as amount of mineral, vitamin, and xanthophyll, which showed that those components are not affected by citrus byproducts. However, the amount of cholesterol of egg yolk for T1 was 1,168 mg/100 g, which was significantly lower than that for T0 which was 1,207 mg/100 g (p less than 0.05). The amount of L-glutamic acid, one of the free amino acids, of the egg albumen was 39.22 and 58.54 ppm for T0 and T1, respectively. The results of this study show that citrus byproducts can be used for the feed for Korean native chicken by adding them to general feed.
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