REVIEW PAPER
Glimpse of functional feed additives for sustainable broiler production - A Review
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1
Dankook University, Department of Animal Biotechnology, Cheonan, 330-714, South Korea
2
Dankook University, Smart Animal Bio Institute, Cheonan, 330-714, South Korea
Publication date: 2025-06-06
Corresponding author
I. H. Kim
Dankook University, Department of Animal Biotechnology, Cheonan, 330-714, South Korea
KEYWORDS
TOPICS
ABSTRACT
For many years, antibiotics were routinely added to chicken feed
to prevent diseases and promote growth. However, growing public health
concerns, changing consumer preferences, regulatory reforms, and the global
sustainability objectives have led to a significant shift toward antibiotic-free
poultry production. A 2020 survey demonstrated that approximately 60% of
global poultry producers have transitioned to antibiotic-free practices in response
to rising consumer demand. At present, antibiotic-free broiler production is not
merely a market trend but a crucial move towards a more responsible industry
that prioritises public health, meets consumer expectations, and contributes to
global efforts to combat antimicrobial resistance (AMR). The WHO attributes
up to 700,000 annual deaths to antimicrobial resistance, with the food industry
playing a significant role. In response to ban on certain antibiotics, alternative
in-feed additives such as pre-probiotics, enzymes, organic acids (OA), and
phytogenic have become popular in poultry production. Research has shown
that the use of pre- and probiotics can increase feed intake in broilers by 5–10%
and reduce disease by 20–25%. Enzymes, on the other hand, have been shown
to improve bird performance and feed efficiency, while mitigating environmental
impacts, while OA, when added to poultry feed, inhibit Salmonella growth. This
review comprehensively examines the mechanisms of action and practical
applications of these functional additives, providing valuable insights to support
researchers, feed manufacturers, and producers in optimising sustainable,
antibiotic-free poultry production systems.
ACKNOWLEDGEMENTS
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-RS-2023-00275307).
CONFLICT OF INTEREST
The Authors declare that there is no conflict of interest.
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