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Dietary flaxseed cake influences on performance, quality, and sensory attributes of eggs, serum, and egg trace minerals of laying hens

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Abstract

Nowadays, there is a global shortage in feed supply for animal nutrition; however, there are a considerable amount of agro-industrial co- and by-products that may offer a reasonable solution. Flaxseed cake (FSC) is a by-product of flaxseed for oil extraction rich in n-3 α-linolenic acid (ALA). Thus, the dietary inclusion of FSC on laying performance, egg quality, and serum and egg trace elements (Se, Zn, and Fe) was evaluated using Hisex White hens. The hens were distributed to three equal experimental treatments and provided diets including 0%, 5%, or 10% FSC from 48 to 58 weeks of age. Findings clarified that up to 10% FSC in the laying hen diet had no detrimental effect on laying rate, egg mass, and feed utilization. It was found that FSC resulted in a valuable source of protein, energy, macro- (Ca and P), micro- (Se, Zn and Fe) elements, and essential amino acids, with arginine being the highest. Dietary FSC did not negatively influence the egg quality traits, as well as egg sensory attributes. Including 5% or 10% FSC in diet did not significantly affect serum total protein and renal function in terms of creatinine, uric acid, and uric acid-to-creatinine ratio. Different FSC levels did not influence the chemical composition of eggs and trace elements in serum and eggs. It could be concluded that FSC is a valuable feedstuff that can provide a good source of energy, protein, amino acids, and macro- and micro-elements for hens’ nutrition. The inclusion of up to 10% of FSC in hens diet did not adversely influence egg laying performance, egg quality of both fresh and stored eggs, sensory attributes, and nutritional composition, as well as Se, Zn, and Fe in serum and eggs due to balanced nutrient profile of FSC.

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The data are available upon official request from the principal investigator and with the permission of the funding agent.

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Acknowledgements

This research work was funded by Researchers Supporting Project number RSPD2023R581, King Saud University, Riyadh, Saudi Arabia.

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Conceptualization, YAA, RAA; methodology, YAA, AA-Al, AAAl-S, EL-SOH, HAS, SRAL, and MJO; software, YAA, RAA, and MJO; data collection, MJO, EL-SOH, and AAAl-S; investigation, HAS, YAA, MJO, AAAl, AAAl-S, SRAL, MJO, and EL-SOH; resources, AAAl-S, EL-S OSH, and MJO; writing – original draft preparation, YAA, TAE, HAS, and MJO; writing – review and editing, YAA, TAE, SRAL HAS, MJO, VT, AAAl-S, and AAAl; project administration and supervising, YAA; funding acquisition, RAA, HAS, YAA, and SRAL. All of the authors have read and agreed to the published version of the manuscript.

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Correspondence to Youssef A. Attia or Vincenzo Tufarelli.

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Attia, Y.A., Al-Sagan, A.A., Hussein, ES.O.S. et al. Dietary flaxseed cake influences on performance, quality, and sensory attributes of eggs, serum, and egg trace minerals of laying hens. Trop Anim Health Prod 56, 50 (2024). https://doi.org/10.1007/s11250-024-03897-0

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