Effect of organic acid blend andBacillus subtilisalone or in combination on growth traits, blood biochemical and antioxidant status in broilers exposed toSalmonella typhimuriumchallenge during the starter phase

Abstract

The present study was designed to find the effect of an antibiotic, an organic acid and a probiotic on performance traits, blood biochemical parameters and antioxidant status during the starter phase exposed to Salmonella typhimurium challenge. A total of 300 day-old broiler chicks were randomly allocated to control (basal diet), T1: infected with Salmonella enteric subsp. Typhimurium; T2: infected + avilamycin; T3: infected + organic acid; T4: infected + Bacillus subtilis; T5: infected + organic acid + probiotic. The results showed that body weight, feed conversion ratio and production efficiency factor did not differ (P > .05) between the control and treated groups. Blood albumin and aspartate aminotransferase increased significantly (P < .05) in birds in T5 during the first week. Similarly, total protein and triglyceride concentration increased significantly (P < .05) in T4 and T5. The total antioxidant capacity in the second week decreased significantly in T4 compared to the control. Thiobarbituric acid reactive substances during the first and second weeks did not differ significantly (P > .05) between the control and treated groups. We concluded that the effect of organic acid blend and B. subtilis was similar to that of the antibiotic in broilers during the starter phase exposed to S. typhimurium challenge.

Evaluating two multistrain probiotics on growth performance, intestinal morphology, lipid oxidation and ileal microflora in chickens

“…In agreement with the present study, Mokhtari et al () reported that adding antibiotics in broiler chicken diets improves ADG in starter experimental period. By contrast, Abudabos, Alyemni, Dafalla, and Khan () suggested that the supplementation of an antibiotic did not have any effect on ADG and FCR. Avilamycin is an oligosaccharide (orthosomycin) antimicrobial substance belonging to the orthosomycin class of antibiotics, which shows bactericidal activity against gram‐positive bacteria and is used only for growth promotion (Witte, ).…”

Optimization of surfactin production from Bacillus subtilis in fermentation and its effects on Clostridium perfringens‐induced necrotic enteritis and growth performance in broilers

“…The effect of B. subtilis on growth performance improvements by alteration of intestinal microbiota in broilers is well documented (Abudabos, Alyemni, Dafalla, & Khan, ; Aliakbarpour et al., ; Jayaraman et al., ; Jeong & Kim, ; Sen et al., ; Wu et al., ). We also demonstrated that fermented products from B. subtilis could improve growth performance and intestinal morphology in broilers.…”

Effects of dietary short- and medium-chain fatty acids on performance, carcass traits, jejunum morphology, and serum parameters of broiler chickens

“…In fact, butyric acid, the major energy source to enterocytes, is essential to the health of intestinal mucosa (Isolauri et al 2004), and as an organic acid, it did not affect broiler chicken performance challenged with Salmonella ernerica subsp. Typhimurium (Abudabos et al 2017). On the other hand, the addition of 2 ml of Aciflex® as organic acid per litre of Japanese quails drinking water improved the performance and dressing percentage (Khan et al 2016).…”