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Areas of Expertise:
Poultry immunology (broilers, layers, turkeys)
Enteric pathogens and intestinal Health
Foodborne pathogens (pre-harvest)
Ph.D., Poultry Science/Immunology, University of Maryland
M.S., Poultry Science/Microbiology, American University of Beirut (Lebanon)
B.S., Agriculture/Animal Sciences, American University of Beirut (Lebanon)
Diploma, Ingénieur Agricole, American University of Beirut (Lebanon)
Research in our laboratory intersects with several multidisciplinary focus areas within the UGA Department of Poultry Science. Our driving focus investigates host-pathogen interactions during enteric challenges with particular emphasis on coccidiosis and clostridial diseases, very impactful diseases of commercial poultry. Additionally, we explore various applications of antibiotic alternatives to mitigate the adverse effects of enteric (e.g. Eimeria, Clostridium) and foodborne (e.g. Salmonella, Campylobacter) pathogens. In this context, we examine the molecular mechanisms of mucosal immunomodulation and physio-immunological responses of the host during such challenges. Further, we interrogate issues of nutritional immunology specifically applications for enhancing the early development and competence of the immune system as well as promoting a healthy microbiome.
Current Lab Members:
Candice Blue (PhD)
Laney Froebel (MS)
Davis Fenster (MS)
If our research areas excite you, email your CV/Resume and research interests to Rami.Dalloul@uga.edu.
Selected Recent Publications:
Emami NK, Calik A, White MB, Kimminau EA, Dalloul RA. Managing broilers gut health with antibiotic-free diets during subclinical necrotic enteritis. Poultry Science, 100:101055. 2021.
Omara II, Pender CM, White MB, Dalloul RA. The modulating effect of dietary beta-glucan supplementation on expression of immune response genes of broilers during a coccidiosis challenge. Animals, 11:151. 2021.
Emami NK, Calik A, White MB, Kimminau EA, Dalloul RA. Effect of probiotics and multi-component feed additives on microbiota, gut barrier and immune responses in broiler chickens during subclinical necrotic enteritis. Frontiers in Veterinary Science, 7:572142. 2020.
Calik A, Omara II, White MB, Evans NP, Karnezos TP, Dalloul RA. Dietary non-drug feed additive as an alternative for antibiotic growth promoters for broilers during a necrotic enteritis challenge. Microorganisms, 7:257. 2019.
Calik A, Omara II, White MB, Li W, Dalloul RA. Effects of dietary direct fed microbial supplementation on performance, intestinal morphology and immune response of broiler chickens challenged with coccidiosis. Frontiers in Veterinary Science, 6:463. 2019.
Emami NK, Calik A, White MB, Young M, Dalloul RA. Necrotic enteritis: The role of tight junctions and mucosal immune responses in alleviating the effects of the disease. Microorganisms, 7:231. 2019.
Ma D, Huang Y, Ma C, Zhang L, Wang J, Dian Wang D, Li J, Dalloul RA. Eimeria tenella: specific EtAMA1-binding peptides inhibit sporozoite entry into host cells. Poultry Science, 98:4480-4491. 2019
Shan C, Sun B, Dalloul RA, Zhai Z, Sun P, Li M, Luan W, Yang S. Effect of the oral administration of astragalus polysaccharides on jejunum mucosal immunity in chickens vaccinated against Newcastle disease. Microbial Pathogenesis, 135:103621. 2019.
Ott CP, Omara II, Persia ME, Dalloul RA. The impact of β-glucans on performance and response of broiler chickens during a coccidiosis challenge. Poultry Science, 97:2713-2721. 2018.
Pender CM, Kim S, Sumners LH, Ritzi MM, Young M, Dalloul RA. In ovo and dietary supplementation of probiotics affects post-hatch expression of immune-related genes in broiler chicks. Journal of Immunobiology, 2:3. 2017.
Vinkler M, Leon AE, Kirkpatrick L, Dalloul RA, Hawley DM. Differing house finch cytokine expression responses to original and evolved isolates of a newly emerged bacterial pathogen. Frontiers in Immunology, 9:13. 2018.
Pender CM, Kim S, Potter TD, Ritzi MM, Young M, Dalloul RA. In ovo supplementation of probiotics and its effects on performance and immune-related gene expression in broiler chicks. Poultry Science 96:1052-1062. 2017.
Ritzi MM, Abdelrahman W, van-Heerden K, Mohnl M, Barrett NW, Dalloul RA. Combination of probiotics and coccidiosis vaccine enhances protection against an Eimeria challenge. Veterinary Research, 47:111. 2016.
Pender CM, Kim S, Potter TD, Ritzi MM, Young M, Dalloul RA. Effects of in ovo supplementation of probiotics on performance and immunocompetence of broiler chicks to an Eimeria challenge. Beneficial Microbes, 7:699-705. 2016.