Bacillus licheniformis (DSM 28710)

What it is. Bacillus licheniformis DSM 28710 is a zootechnical feed additive (functional group 4b, intestinal flora stabilisers) consisting of a solid preparation of viable spores of this bacterial strain, produced by Huvepharma NV. The additive contains a guaranteed minimum spore count expressed in CFU/g, as set out in EU registration 4b1828.

What it is for. It is used to stabilise intestinal flora in poultry: chickens for fattening, chickens reared for laying, laying hens, minor poultry species for laying or fattening, breeding poultry and ornamental birds, and in fattening and breeding turkeys. It is generally used in compound feed or premixes as a probiotic-type additive supporting gut balance during rearing or laying phases. It may be used in feed containing diclazuril or lasalocid A sodium as authorised coccidiostats.

Points to watch. The minimum spore content differs by species group (3.2×10^9 CFU/g of additive overall, with a minimum of 1.6×10^9 CFU/g of feed specified for laying hens, minor laying poultry species, breeding poultry species and ornamental birds). Storage conditions and heat-treatment stability must be indicated in the instructions for use of the additive and premixtures. Operators must apply operational and organisational measures to limit inhalation, skin and eye exposure, using personal protective equipment where risks cannot be sufficiently reduced.