Pomegranate peel dietary supplementation in laying hens affects egg yolk color and eggshell quality, decreases yolk lipid oxidation and influences yolk lipidomic profile

Autor: Styliani Lioliopoulou, Georgios A. Papadopoulos, Fani Th. Mantzouridou, Ilias Giannenas, Aggeliki G. Kalogeropoulou, Artemis Lioupi, Georgios Theodoridis, Paschalis Fortomaris
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Applied Poultry Research, Vol 33, Iss 4, Pp 100495- (2024)
Druh dokumentu: article
ISSN: 1056-6171
DOI: 10.1016/j.japr.2024.100495
Popis: SUMMARY: Pomegranate peel is a byproduct of the pomegranate juice industry, rich in bioactive compounds. The objective of this study was to evaluate the quality and nutritional parameters of eggs from laying hens fed a diet supplemented with a pomegranate peel byproduct (PPB). A total of 48 Isa Brown laying hens were allotted to four groups (12 replicates per group) and offered the following diets for 8 weeks: Control (0% PPB); PPB1 (1% PPB); PPB2.5 (2.5% PPB); PPB5 (5% PPB). Eggs were collected and analyzed for egg quality parameters, yolk Malondialdehyde (MDA) levels, fatty acid profile, total phenol content, α-tocopherol, cholesterol and lipidomic profile. Sampling was performed weekly, whereas a complete egg quality analysis was performed every two weeks. The results showed that eggshell weight was greater in PPB5 group compared to Control and PPB1 (P=0.008). Eggshell thickness was greater in PPB5 compared to PPB1 (P=0.016). Egg shape index was increased in PPB2.5 treatment (P=0.006). The higher PPB inclusion levels (2.5% and 5%) increased yolk coloration (P=0.014) and reduced yolk MDA content (P
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