Bacillus subtilis 29784 improved the growth performance of broilers

Based on your knowledge on the subject, Dr. Damien, I would like to know if the bacillus strain used produces the BSH enzyme, which is common in some strains of lactobacilli and bifidobacteria also used as probiotics. This is because this enzyme by hydrolyzing bile salts can harm birds in which the oil is used in the food. And I would also like to know if there is a possibility that this strain transfers antibiotic resistance to pathogenic microorganisms.

Damien Preveraud, thank you for your response. Can you please elaborate a bit on thermostability of this probiotic? Will it withstand ~90C that’s usually observed in our country during Summer time? If yes, then what’s the technology behind?

Thanks all for your comments. In these data presented in St Louis, we clearly demonstrated that bacillus Subtilis 29784 improved performance (standard and challenged conditions) thanks to their metabolites able to control overall inflammation (activation of NfkB pathway) and to improve gut integrity (expression of tight junction). This could also occur indirectly through the shift of microbiota of beneficial bacteria.

bacillus subtilis 29784 improved the growth only not anti clostridia

The single stomach animals have very much less bacterial activity for contribution towards FCR. but Probiotics may enhance the digestibility of nutrients and contribution towards gut health by increasing the acidic medium provided prebiotic also there.