Effect of Using Organic Acids to Substitute Antibiotic Growth Promoters on Performance and Intestinal Microflora of Broilers

Abstract

A grower broiler experiment (from 14 to 35 days of age) was conducted to study the effect of using two commercial mixtures of organic acids (Galliacid ® and Biacid ® ) to substitute antibiotic growth promoter (Eneramycin ® ) on performance, carcass characteristics and intestinal microflora. 400 (Ross 308) broiler chicks were used. A basal corn-soybean meal diet were formulated and served as a control treatment. The control diet was supplemented with either 0.06% Galliacid, 0.1% Biacid or 0.02% Eneramycin. Birds fed the Galliacid-supplemented diet had 16% (p<0.001) more gain than the control, while those fed the Biacid-or Enramycinsupplemented diets recorded 3 and 5.5% more gain, respectively. Organic acids mixtures and Enramycin supplementation significantly (p<0.001) improved feed conversion ratio. These results indicated that birds fed either organic acid mixtures or Enramycinsupplemented diets utilized feed more efficiently than those fed the control diet. Galliacid significantly (p<0.01) increased dressing percentage and bursa weight (% body weight). No significant differences were detected on liver, spleen and thymus (% body weight) among treatments. Galliacid or Biacid significantly (p<0.001) decreased intestinal Escherichia coli and Salmonella compared to the control and Enramycin-supplemented diets. Dietary Enramycin significantly (p<0.001) decreased Escherichia coli, but had no effect on Salmonella counts. In conclusion, organic acid mixtures are more efficient than antibiotic growth promoter (Enramycin) in improving broiler performance and decreasing intestinal Escherichia coli and Salmonella spp., and could be successfully used to substitute antibiotic growth promoters in broiler diets. However, not all of the organic acid mixtures gave the same effect either on performance or intestinal bacterial counts.

Adding Phytogenic Material and/or Organic Acids to Broiler Diets: Effect on Performance, Nutrient Digestibility and Net Profit

“…Regarding the effect of organic acids, the obtained results agreed with previous studies demonstrated that supplementation of organic acids to broiler diets could be used to increased growth performance, reduced diseases and overcome some management problems (Gunal et al, 2006;Islam et al, 2008;Ao et al, 2009;Hassan et al, 2010;Sayrafi et al, 2011;Mohamed et al, 2014). Gunal et al (2006), Islam et al (2008) and Ao et al (2009) concluded that organic acids could be used in poultry as a growth promoter and as a meaningful tool of controlling intrinsic pathogenic bacteria.…”

“…Cengiz et al (2012) reported that supplementation of organic acids to poultry diets was shown to increases beneficial microbial activity in the small intestine. It also suppresses the growth of certain species of bacteria such as Salmonella, E. coli, Clostridium perfringes, Listeria monocytogenes and Campylobacter (Van Immerseel et al, 2002;Hassan et al, 2010;Mohamed et al, 2014). Mohamed et al (2014) found that dietary inclusion of organic acids in broiler diets increased growth performance and improved intestinal morphology.…”

“…There are reports that show increased, unchanged as well as reduced villi length and crypt depth in jejunum and colon for broiler and piglet treated with phytogenics (Namkung et al, 2004;Demir et al, 2005;Jamroz et al, 2006;Nofrarias et al, 2006;Oetting et al, 2006). Also, organic acids are among the alternative growth promoters that are being used to stimulate growth performance in poultry (Hassan et al, 2010;Mohamed et al, 2014). Many studies demonstrated that supplementation of organic acids to broiler diets increase growth performance, improve gut morphology, reduce diseases and overcome some management problems (Gunal et al, 2006;Islam et al, 2008;Ao et al, 2009;Hassan et al, 2010;Sayrafi et al, 2011;Mohamed et al, 2014).…”

“…Also, organic acids are among the alternative growth promoters that are being used to stimulate growth performance in poultry (Hassan et al, 2010;Mohamed et al, 2014). Many studies demonstrated that supplementation of organic acids to broiler diets increase growth performance, improve gut morphology, reduce diseases and overcome some management problems (Gunal et al, 2006;Islam et al, 2008;Ao et al, 2009;Hassan et al, 2010;Sayrafi et al, 2011;Mohamed et al, 2014).…”

Lower Illeal Microflora and Growth Performance of Broilers Supplemented with Organic Acid Blend (Aciflex®) During Starter Phase

“…It also produces acidic condition that makes the nutrients more available for better performance (Boling et al, 2001). Similarly, our result are also in line with Hassan et al (2010) who stated that organic acids significantly (p<0.001) improved feed conversion ratio. These results also agreed with the findings of Isabel and Santos (2009);Parker (2011), who investigated that organic acid has significantly affected the FCR.…”