Caspian Journal of Veterinary Sciences

Caspian Journal of Veterinary Sciences

Effect of barley malt extract on intestinal Escherichia coli populations in broiler chickens

Document Type : Original Article

Authors
1 Department of Livestock, Poultry and Aquatic Animal Health, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
2 Nephrology and Urology Research Center, Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Abstract
The recent study was performed to investigate the effect of malt extract in drinking water on intestinal bacterial population in broiler chickens. A totalof 120 day-old broiler chicks, Ross strain, were purchased and divided into four equal groups. Each group divided into three subgroups of 10 chicks. Groups “A”, “B”, and “C” chickens received 0.2%, 0.3%, and 0.5% of malt extract, respectively, in drinking water. group “D” as control group did not receive malt extract. The results showed that receiving of malt extract at 0.2% concentration reduced colony forming units of Escherichia coli in group “A” compared to all groups. The colony forming units of E. coli in digesta of ileo-cecum in group “A” on Mac Conkey agar, Nutrient agar and Eosin methylene blue agar showed a lower number compared to control group.
Keywords
Subjects

Baratta, MT; Dorman, HD; Deans, SG; Biondi, DM and Ruberto, G (1998). Chemical composition, antimicrobial and antioxidative activity of laurel, sage, rosemary, oregano and coriander essential oils. J. Essential Oil Res., 10: 618-627.
Bölükbaşi, ŞC and Erhan, MK (2007). Effect of dietary thyme (Thymus vulgaris) on laying hens performance and Escherichia coli (E. coli) concentration in feces. Int. J. Natural Eng. Sci., 1: 55-58.
Cervantes, H (2006). Banning antibiotic growth promoters: Learning from the European experience. Poult. Int., 45: 14-15.
Cook, NC and Samman, S (1996). Flavonoids-chemistry, metabolism, cardioprotective effects, and dietary sources. J. Nutr. Biochem., 7: 66-76.
Cross, D; Hillman, K; Fenlon, D; Deans, S; McDevitt, R; Acamovic, T and Pennycott, T (2004). Antibacterial properties of phytochemicals in aromatic plants in poultry diets. Poisonous Plants Related Toxins, 18: 175-180.
Dorman, HD and Deans, SG (2000). Antimicrobial agents from plants: antibacterial activity of plant volatile oils. J. Appl. Microbiol., 88: 308-316.
Erik, K and Knudsen, B (2001). Development of antibiotic resistance and options to replace antimicrobials in animal diets. Proceed. Nutr. Soc., 60: 291-299.
Horton, G; Fennell, M and Prasad, B (1991). Effect of dietary garlic (Allium sativum) on performance, carcass composition and blood chemistry changes in broiler chickens. Can. J. Anim. Sci., 71: 939-942.
Jamroz, D; Orda, J; Kamel, C; Wiliczkiewicz, A; Wertelecki, T and Skorupińska, J (2003). The influence of phytogenic extracts on performance, nutrient digestibility, carcass characteristics, and gut microbial status in broiler chickens. J. Anim. Feed Sci., 12: 583-596.
Jamroz, D; Wiliczkiewicz, A; Wertelecki, T; Orda, J and Skorupińska, J (2005). Use of active substances of plant origin in chicken diets based on maize and locally grown cereals. British Poult. Sci., 46: 485-493.
Manach, C; Regerat, F; Texier, O; Agullo, G; Demigne, C and Remesy, C (1996). Bioavailability, metabolism and physiological impact of 4-oxo-flavonoids. Nutr. Res., 16: 517-544.
Miron, T; Rabinkov, A; Mirelman, D; Wilchek, M and Weiner, L (2000). The mode of action of allicin: its ready permeability through phospholipid membranes may contribute to its biological activity. Biochim. Biophys. Acta (BBA)-Biomembranes, 1463: 20-30.
Nollet, L (2005). AGP alternatives-part I. EU close to a future without antibiotic growth promoters. World Poult., 21: 14-15.
Patterson, J and Burkholder, K (2003). Application of prebiotics and probiotics in poultry production. Poult. Sci., 82: 627-631.
Rees, L; Minney, S; Plummer, N; Slater, J and Skyrme, D (1993). A quantitative assessment of the antimicrobial activity of garlic (Allium sativum). World J. Microbiol. Biotechnol., 9: 303-307.
Rezvani, MR; Abbasi, M and Sabet, S (2021). Effect of malt extract on growth performance, nutrient digestibility, and cecal microflora in broilers. J. Anim. Prod., 23: 471-479.
Ricke, S (2003). Perspectives on the use of organic acids and short chain fatty acids as antimicrobials. Poult. Sci., 82: 632-639.
TF, S (1996). The effects of feeding a mannan oligosaccharide on immunoglobulins, plasma IgG and bile IgA, of Wrolstad MW male turkeys. Poult. Sci., 75: 143-148.
Vahdatpour, T; Nikpiran, H; Babazadeh, D; Vahdatpour, S and Jafargholipour, MA (2011). Effects of Protexin®, Fermacto® and combination of them on blood enzymes and performance of Japanese quails (Coturnix Japonica). Ann. Biol. Res., 2: 283-291.
Wakeman, W (2005). AGP alternatives-Part II. Dietary strategies to influence bacterial microflora. World Poult., 21: 28-29.

Articles in Press, Accepted Manuscript
Available Online from 14 November 2026

  • Receive Date 24 May 2026
  • Revise Date 02 June 2026
  • Accept Date 02 June 2026