ANNALS OF ANIMAL SCIENCE ISSN: 2300-8733, https://sciendo.com/journal/AOAS ACCEPTED AUTHOR VERSION OF THE MANUSCRIPT: A narrative review on the beneficial impacts of probiotics on poultry: an updated knowledge DOI: 10.2478/aoas-2023-0001 Aljohara M. Al- Otaibi 1 , Mohamed E. Abd El-Hack 2♦ , Saif M. Dmour 3 , Noorah Alsowayeh 4 , Asmaa F. Khafaga 5 , Elwy A. Ashour 1 , Mohamed A. Nour-Eldeen 1 , Sylwester Świątkiewicz 6♦ 1 Department of Biology, College of Science, Princess Nourah bint Abdulrahman University 13225, Saudi Arabia 2 Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt 3 Department of Laboratory Medical Sciences, Princess Aisha Bent Al-Hussein Faculty of Nursing and Health Sciences, Al Hussein bin Talal University, Jordan 4 Department of Biology, College of Education (Majmaah), Majmaah University, Al-Majmaah, 11952, Saudi Arabia 5 Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina 22758, Egypt 6 National Research Institute of Animal Production, 32-083 Balice n. Kraków, Poland ♦Corresponding author: dr.mohamed.e.abdalhaq@gmail.com; sylwester.swiatkiewicz@iz.edu.pl Received date: 17 November 2022 Accepted date: 4 January 2023 To cite this article: (2023). Al- Otaibi A.M., Abd El-Hack M.E., Dmour S.M., Alsowayeh N., Khafaga A.F., Ashour E.A., Nour-Eldeen M.A., Świątkiewicz S. (2023). A narrative review on the beneficial impacts of probiotics on poultry: an updated knowledge, Annals of Animal Science, DOI: 10.2478/aoas-2023-0001 This is unedited PDF of peer-reviewed and accepted manuscript. Copyediting, typesetting, and review of the manuscript may affect the content, so this provisional version can differ from the final version.