Journal
ANIMAL SCIENCE JOURNAL
Volume 92, Issue 1, Pages -Publisher
WILEY
DOI: 10.1111/asj.13510
Keywords
amino acid; breed; chicken; egg; taste
Categories
Funding
- Kuribayashi Scholarship and Academic Foundation
- Northern Advancement Center for Science and Technology
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By investigating the impact of different chicken breeds and feeds on the amino acid contents and bitterness sensor traits of eggs, it was found that breeds and feeds significantly influenced bitterness in the albumen and yolk, with limited effects on amino acid traits. The results suggest that selecting the right combination of breed and feed can result in customized eggs with enriched amino acids and enhanced taste.
To create high-quality eggs by using different breed and feed materials, we investigated free amino acid contents and taste sensor traits using two chicken breeds (Rhode Island Red; RIR and Australorp; AUS) fed two feeds (mixed and fermented feeds). Two-way ANOVA revealed significant breed and feed main and interaction effects on albumen bitterness and a significant interaction effect on yolk bitterness. Albumen from RIR fed mixed feed and AUS fed fermented feed was higher bitterness, whereas yolk from those groups was lower bitterness. Significant breed effects were detected in four albumen amino acid traits (His, Met, Ile, and Lys) and a yolk His, whereas significant feed effects were found in 15 albumen amino acid traits (Asp, Glu, Ser, His, Gly, Thr, Ala, Tyr, Val, Met, Trp, Ile, Leu, Lys, and Pro) and a yolk cystine trait. Compared to albumen amino acids, yolk amino acids had limited effects by breed and feed. The present results suggest that genetic and nutritional factors can alter not only amino acid contents but also sensor values of bitterness, indicating that selecting the combination of breed and feed enable us to make amino acids enriched and taste added designer eggs in future.
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