The Effect of Dietary Inclusion of Probiotics on Growth and Intestinal Morphology of Broiler Chickens

Abstract

Probiotics are currently under investing the most valuable substances alternative to antibiotic growth promoters in poultry breeding practice. This research was performed to evaluate the effect of supplementing broiler drinking water with probiotics (Pediococcus acidilactici and Bacillus subtilis) at a concentration of ≥10 8 CFU/ml during 42 days of feeding period on growth performance and gut health. A total of 144 one-day-old Ross 308 broiler chicks (mixed gender) with an average initial BW of 42.3 g were used. The chicks were allotted to pens with 12 birds per pen and six replications per treatment with food and water provided ad libitum. Feed intake of Probiotic group was 4134 g, 338 g less than that of control group. Live weight of probiotic group was 2537 g and a 113 g more than that of control group. The feed conversion ratio of probiotic group was 1.61, 0.22 less than that of control group. The crypt depth of probiotic group (1110.46 ± 224.016 µm) was statistically deeper than that of control group (949.39 ± 114.166 µm) in ileum. Continuously use of probiotics in drinking water of commercial poultry flocks appears to be alternative to AGPs. The results of this study provide a greater understanding of the impact of long-life use of probiotics on broiler health and growth performances.

Effect of Dietary Supplementation of Prebiotic and Acidifier Powder on Growth Performance and Haemato-biochemical Parameters in Broilers

“…The feed conversion ratios in feed intake per unit gain in weight for the birds from group T 3 were significantly higher than control, T 1 and T 2 groups (Table 2). The present study results agree with Williams et al (2022) and Youssef et al (2017) who reported significantly better FCR by addition of prebiotic and acidifier in diet, respectively. However, Kim et al (2011) and Heidari et al (2018) observed non-significant effect (p>0.05) on FCR in broiler birds supplemented with prebiotic and acidifier respectively in broiler diet.…”

“…The average feed consumption of birds of the experimental groups, T 3 group has higher comparable with C, T 1 and T 2 group. Present findings (Table 2) are in agreement to the findings of Saleh et al (2014) and Youssef et al (2017) who reported significant effect on feed consumption due to supplementation of prebiotic and acidifier powder respectively. However, contradicting the findings of the present study, Taherpour and Ghasemi (2014) reported non-significant (p>0.05) effect on feed intake due to fed of prebiotic with acidifier combination.…”

“…The present results (Table 3) are favorably compared with the findings of Youssef et al (2017) who reported nonsignificant changes in the creatinine levels of the broiler birds fed acidifier powder as the dietary supplement.…”

Acidifiers as Alternatives for Antibiotics Reduction and Gut Health Improvement for Poultry and Swine

“…However, Youshelf et al (2017) reported that supplements of single lactic acid (0,2%) in broiler diets seem to obtain better performances than the organic acid mixture (0,4%). It was also found that the inclusion of single lactic acid in broiler diets declined the serum cholesterol level, the pH of small intestine, the counts of fecal coliforms and E. coli, but did not affect the carcass yield, breast, or organ weights [94].…”

Unveiling the Antibiotic Susceptibility and Antimicrobial Potential of Bacteria from Human Breast Milk of Pakistani Women: An Exploratory Study

“…Probiotic preparations usually comprise of probiotic bacterial strains that are acid-tolerant bacteria producing lactic acid (an organic acid) after carbohydrate fermentation as a main metabolic end-product. The antimicrobial effects caused by organic acids have been well acknowledged [22][23][24]. The low pH will decrease the pathogenic bacteria while assisting the propagation of the probiotic and other advantageous, organic acid-tolerant microbes in the gastrointestinal tract [25].…”