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Review
. 2023 May;107(3):928-947.
doi: 10.1111/jpn.13758. Epub 2022 Aug 1.

Impacts of polyphenols on laying hens' productivity and egg quality: A review

Mohamed E Abd El-Hack  1 , Heba M Salem  2 , Asmaa F Khafaga  3 , Soliman M Soliman  4 , Mohamed T El-Saadony  5
Affiliations
Review

Impacts of polyphenols on laying hens' productivity and egg quality: A review

Mohamed E Abd El-Hack et al. J Anim Physiol Anim Nutr (Berl). 2023 May.

Abstract

There has been a rapid increase in the world's output of main poultry products (meat and eggs). This reflects customer desire for these high-quality and safe products and the comparatively low price. Recently, natural feed additives, plants and products have been increasingly popular in the poultry and livestock industries to maintain and improve their health and production. Polyphenols are a type of micronutrient that is plentiful in our diet. They are phytochemicals that have health benefits, notably cardiovascular, cognitive function, antioxidant, anti-mutagenic, anti-inflammatory, antistress, anti-tumour, anti-pathogen, detoxification, growth-promoting and immunomodulating activities. On the other hand, excessive polyphenol levels have an unclear and sometimes negative impact on gastrointestinal tract health, nutrient digestion, digestive enzyme activity, vitamin, mineral absorption, laying hens performance and egg quality. As a result, this review illuminated polyphenols' various sources, classifications, biological activities, potential usage restrictions and effects on poultry, layer productivity and egg external and internal quality.

Keywords: egg quality; laying hens; polyphenols; storage time.

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References

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