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Anim Biosci > Accepted Articles
https://doi.org/10.5713/ab.22.0049    [Accepted] Published online June 24, 2022.
Effect of xylo-oligosaccharides on reproducibility, lipid metabolism, and adipokines of hens during the late egg‐laying period
Fengyun Wen1  , Fengyan Wang1  , Pei Li1  , Hanyi Shi2  , Ning Liu1,* 
1Department of Animal Science, Henan University of Science and Technology, Luoyang, China
2Department of Poultry Science, University of Georgia, Athens, GA, USA
Correspondence:  Ning Liu, Tel: +86-379-64282341, Fax: +86-379-6282341, Email: ningliu68@163.com
Received: 2 February 2022   • Revised: 15 March 2022   • Accepted: 11 May 2022
Abstract
Objective
The present study aimed to investigate the effect of xylo-oligosaccharides (XOS) administration on egg production, reproductive hormones, serum lipids and adipokines of hens at the late cycle of reproduction.
Methods
Four treatments included control (basal diet) and XOS addition at 2.0 (XOS-2), 4.0 (XOS-4), or 6.0 (XOS-6) g/kg of diet using 288 commercial Hy-Line brown hens from 73 to 84 wk of age. Egg production, body fat deposition, reproductive tract and hormones, lipid metabolism and adipokines were determined.
Results
At 84 wk, compared to the control, XOS supplementation at the three doses increased (p<0.001) egg-laying rates by 13.2% averagely, which led to a higher egg mass by 131 g/hen throughout the whole trial period. Abdominal fat and skinfold of XOS treatments were decreased (p<0.001) by 26.1 and 18.6%, respectively; large follicles and ovary weight were increased (p<0.001) by 0.73 follicle/hen and 18.6%, respectively. For serum parameters, cholesterol and triglyceride were decreased (p<0.001) by 17.5 and 29.2%, respectively; luteinizing hormone, follicle-stimulating hormone, and progesterone were increased (p≤0.001) by 16, 31, 29%, respectively; adiponectin and visfatin were increased (p<0.001) by 34 and 44%, respectively; but chemerin and leptin were decreased (p≤0.001) by 22 and 14%, respectively. With the increased XOS doses, linear decreases (p<0.05) were found on abdominal skinfold and serum triglyceride.

Conclusion

The obtained data indicate that XOS can be used as an additive to improve fecundity by beneficially modulating fat deposition, lipid metabolism, reproductive hormones, and adipokines of hens at the late cycle of reproduction.
Keywords: Adipokine; Hens; Lipid Metabolism; Reproducibility; Xylo-oligosaccharides


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