Description
What it is. Bacillus subtilis DSM 28343 is a zootechnical feed additive consisting of a solid preparation of viable spores of this bacterial strain, containing at least 1 × 10^10 CFU/g of additive. It belongs to functional group 4b, gut flora stabilisers.
What it is for. It is used to support intestinal flora stability in calves for rearing (milk replacers only), weaned piglets up to 35 kg, pigs for fattening and chickens for fattening. Minimum inclusion levels in feed vary by species, ranging from 2 × 10^8 to 1 × 10^9 CFU/kg according to the authorised uses. A related study on a marine Bacillus subtilis strain illustrates antibiofilm activity of culture supernatant against Vibrio harveyi in an aquaculture context, without establishing a feed use level.
Points to watch. Use instructions must specify storage conditions and stability to heat treatment. For calves for rearing, use is restricted to milk replacer feed; for weaned piglets, use is limited to animals up to 35 kg body weight. Feed business operators must implement operational procedures and organisational measures to manage risks linked to handling, including personal protective equipment where risks cannot otherwise be minimised.
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