Styliani Lioliopoulou , Georgios A. Papadopoulos , Fani Th. Mantzouridou , Ilias Giannenas , Aggeliki G. Kalogeropoulou , Artemis Lioupi , Georgios Theodoridis , Paschalis Fortomaris
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引用次数: 0
Abstract
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<0.001) compared to Control. However, cholesterol content was higher in PPB1 compared to Control (P=0.028). Regarding lipidomic analysis, differentiations in yolk lipid profile were found in PPB2.5 and PPB5 yolks compared to Control (P = 0.022 and P = 0.034 in ESI- and ESI+, respectively). Mainly ceramides were upregulated. Overall, PPB supplementation up to 5% in laying hens can improve several egg quality characteristics and reduce yolk lipid peroxidation.
期刊介绍：
The Journal of Applied Poultry Research (JAPR) publishes original research reports, field reports, and reviews on breeding, hatching, health and disease, layer management, meat bird processing and products, meat bird management, microbiology, food safety, nutrition, environment, sanitation, welfare, and economics. As of January 2020, JAPR will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers.
The readers of JAPR are in education, extension, industry, and government, including research, teaching, administration, veterinary medicine, management, production, quality assurance, product development, and technical services. Nutritionists, breeder flock supervisors, production managers, microbiologists, laboratory personnel, food safety and sanitation managers, poultry processing managers, feed manufacturers, and egg producers use JAPR to keep up with current applied poultry research.
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