Performance, Egg Quality, and Immunity of Laying Hens due to Natural Carotenoid Supplementation: A Meta-Analysis

• 영문명: Performance, Egg Quality, and Immunity of Laying Hens due to Natural Carotenoid Supplementation: A Meta-Analysis
• 발행기관: 한국축산식품학회
• 저자명: Fitri Yunitasari Anuraga Jayanegara Niken Ulupi
• 간행물 정보: 『Food Science of Animal Resources』Food Science of Animal Resources 제43권 제2호, 282~304쪽, 전체 23쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2023.03.31

영문 초록

This study aimed to investigate the effectiveness of carotenoid supplementation on the performance, egg quality, and immunity of laying hens using a meta-analysis approach. The database was searched using Google Scholar and Scopus, from 2012 to 2022. The literature was published in English. 47 Articles were selected for metaanalysis. Analyses were performed using the Open Meta-analyst for Ecology and Evolution (OpenMEE) software. The heterogeneity and data validation against publication bias were analyzed using JASP 0.16.2 software. Overall, the results showed that carotenoid supplementation improved feed intake by 0.32 g/day/hen [95% confidence interval (CI)=0.02 to 0.61], final body weight by 0.33 g/hen (95% CI=0.05 to 0.60), egg production by 0.38% (95% CI=0.14 to 0.63), egg weight by 0.29 g (95% CI=0.09 to 0.5), yolk colour by 2.11 (95% CI=1.71 to 2.51), Haugh unit (HU) by 0.26 (95% CI=0.11 to 0.42), yolk carotenoids by 1.17 μg/kg (95% CI=0.59 to 1.75), immunoglobulin A (IgA) by 0.74 mg/L (95% CI=0.18 to 1.29), and lower yolk cholesterol by -0.38 mg/g (95% CI=-0.59 to -0.16). Feed conversion ratio (FCR), eggshell thickness, and white blood cells were unaffected by the application of carotenoids. The heterogeneity analysis showed variability in all studies (<0.05). In conclusion, carotenoid supplementation can elevate productivity, enhance egg quality, and improve immunity. However, based on Kendall’s test, there was a publication bias in several parameters, namely FCR, egg weight, HU, yolk carotenoids, and IgA.

목차

Introduction

Methods

Results and Discussion

Conclusion

Conflicts of Interest

Acknowledgements

Author Contributions

Ethics Approval

References

키워드

egg natural carotenoids laying hens productivity immunity