Dietary supplemental coated essential oils and organic acids mixture improves growth performance and gut health along with reduces Salmonella load of broiler chickens infected with Salmonella Enteritidis

Autor: Zeqiong Hu, Lin Liu, Fangshen Guo, Jia Huang, Jianing Qiao, Ruichen Bi, Jinyu Huang, Kaichen Zhang, Yuming Guo, Zhong Wang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Animal Science and Biotechnology, Vol 14, Iss 1, Pp 1-24 (2023)
Druh dokumentu: article
ISSN: 2049-1891
DOI: 10.1186/s40104-023-00889-2
Popis: Abstract Background Reducing Salmonella infection in broiler chickens by using effective and safe alternatives to antibiotics is vital to provide safer poultry meat and minimize the emergence of drug-resistant Salmonella and the spread of salmonellosis to humans. This study was to first evaluate the protective efficacy of feeding coated essential oils and organic acids mixture (EOA) on broiler chickens infected with Salmonella Enteritidis (S. Enteritidis, SE), and then its action mechanism was further explored. Methods A total of 480 1-day-old Arbor Acres male chickens were randomly assigned into five treatments with six replicates, including non-challenged control fed with basal diet (A), SE-challenged control (B), and SE-infected birds fed a basal diet with 300 mg/kg of EOA (BL), 500 mg/kg of EOA (BM) and 800 mg/kg of EOA (BH), respectively. All birds on challenged groups were infected with Salmonella Enteritidis on d 13. Results Feeding EOA showed a reversed ability on negative effects caused by SE infection, as evidenced by decreasing the feed conversion rate (FCR) and the ratio of villus height to crypt depth (VH/CD) (P
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