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Impact on genetic differences among various chicken breeds on free amino acid contents of egg yolk and albumen.


ABSTRACT: Eggs play important roles as food resources and nutraceuticals, to alleviate malnutrition and to improve health status in the world. Since free amino acids contribute to the nutritional values and food tastes, we investigated a total of 81 eggs from five chicken breeds, which are Australorp, Nagoya (NGY), Rhode Island Red (RIR), Shamo (SHA), Ukokkei, and two F1 hybrids (NGYxRIR and SHAxRIR) to test impact on genetic differences in 10 egg traits, 20 yolk amino acid traits, and 18 albumen amino acid traits. One-way ANOVA revealed significant breed effects on 10 egg traits, 20 yolk amino acid traits, and 15 albumen amino acid traits. Moreover, a significant heterosis effect on yolk aspartic acid was identified. In addition, positive correlations were found broadly among traits within each trait category (egg traits, yolk amino acid traits, and albumen amino acid traits), whereas there were basically no or weak correlations among the trait categories. These results suggest that almost all traits can be dramatically modified by genetic factor, and there will be partially independent production systems of amino acids into yolk and albumen. Since there will be typical quantitative genetic architecture of egg contents, further genetic analyses will be needed.

SUBMITTER: Goto T 

PROVIDER: S-EPMC7838262 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Impact on genetic differences among various chicken breeds on free amino acid contents of egg yolk and albumen.

Goto Tatsuhiko T   Shimamoto Saki S   Takaya Masahiro M   Sato Shun S   Takahashi Kanna K   Nishimura Kenji K   Morii Yasuko Y   Kunishige Kyoko K   Ohtsuka Akira A   Ijiri Daichi D  

Scientific reports 20210126 1


Eggs play important roles as food resources and nutraceuticals, to alleviate malnutrition and to improve health status in the world. Since free amino acids contribute to the nutritional values and food tastes, we investigated a total of 81 eggs from five chicken breeds, which are Australorp, Nagoya (NGY), Rhode Island Red (RIR), Shamo (SHA), Ukokkei, and two F<sub>1</sub> hybrids (NGYxRIR and SHAxRIR) to test impact on genetic differences in 10 egg traits, 20 yolk amino acid traits, and 18 album  ...[more]

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