Effects of Bacillus coagulans ATCC 7050 on growth performance, intestinal morphology, and microflora composition in broiler chickens

Abstract

<jats:p>An experiment was conducted to evaluate the effects of Bacillus coagulans ATCC 7050 (B. coagulans) on the performance, intestinal morphology and microflora of broiler chickens. Six-hundred 1-day-old broilers were randomly assigned into five treatment groups with four replicates for 42 days. There were five dietary treatments: negative control, positive control (antibiotics, 200 mg/kg zinc–bacitracin), 0.10, 0.20 and 0.25 g/kg B. coagulans. Dietary B. coagulans improved feed conversion ratio throughout the entire experimental period compared with the negative control (P = 0.02). Dietary B. coagulans significantly increased the number of lactobacilli (P = 0.01) and tended to decrease coliform bacteria (P = 0.06) in the duodenum. Dietary B. coagulans tended to increase villous height (P = 0.08) but had no effect on crypt depth in the jejunum. There were no significant differences (P &gt; 0.05) in serum cholesterol, triglyceride, high density lipoprotein cholesterol and low density lipoprotein cholesterol between groups. In conclusion, the present data indicate that administration of B. coagulans ATCC 7050 improved feed conversion ratio in broiler chickens, possibly via improving the balance of intestinal microflora.</jats:p>

Effect of Bacillus subtilis CGMCC 1.1086 on the growth performance and intestinal microbiota of broilers

“…As for the increase in feed efficiency in our study, other researchers also found that broilers receiving feed treated with B. subtilis had a significant better FCR than those fed diet without added B. subtilis (Teo and Tan 2007). Apart from this report, several studies have also demonstrated the great improvement in feed efficiency of probiotic supplemented broilers (Mohan et al 1996;Hung et al 2012). Mountzouris et al revealed that the efficacy of B. subtilis may be an outcome of a fine tuning of gut ecosystem, resulting in a better intestinal environment (Mountzouris et al 2010).…”

“…Among these micro‐organisms, the members of Bacillus have been considered to be the most promising, due to the spore's high resistance to harsh conditions in the host's digestive tract (Hung et al . ; Wu et al . ).…”

“…Presently, the members of the genera Bacillus, Lactobacillus, Enterococcus, Bifidobacterium and yeast (Jin et al 1996;Chen et al 2009;Lv et al 2012) are mainly used as probiotic micro-organisms in poultry animals such as broilers and laying hens (Kurtoglu et al 2004;Liu et al 2012). Among these micro-organisms, the members of Bacillus have been considered to be the most promising, due to the spore's high resistance to harsh conditions in the host's digestive tract (Hung et al 2012;Wu et al 2012). Previous studies indicated that dietary supplementation of Bacillus would exert beneficial effect on intestinal microbiota, gut morphology and hence enhance the growth performance and improve the feed conversion ratio (FCR) (Lei et al 2015) in animals.…”

Application of Bacillus coagulans in Animal Husbandry and Its Underlying Mechanisms

“…B. coagulans is resistant to temperature; the perfect growth temperature for B. coagulans is 35 to 50 • C and the optimum growth pH is 5.5 to 6.5 [18,20]. Furthermore, spores of B. coagulans possess strong resistance, revival and stability, which can be activated in the acidic environment of the stomach and begin to germinate and proliferate in the intestinal tract [21]. Spores can accommodate to the intestinal low oxygen environment and reach the gastrointestinal tract smoothly so as to play the role of lactic acid bacteria (LAB) in the intestinal tract [21].…”

Probióticos y su mecanismo de acción en alimentación animal

“…Uno de los mecanismos de los probióticos consiste en cambiar la dinámica de la población microbiana, disminuir el crecimiento de microorganismos patógenos y promover el crecimiento de microflora beneficiosa Mountzouris et al, 2009). Poblaciones microbianas benéficas en el tubo digestivo, se han asociado con aumento en el rendimiento del animal, lo que refleja una digestión más eficiente y mejora en la inmunidad (Niba et al, 2009;Hung et al, 2012).…”