Description
What it is. Benzoic acid is a feed additive produced as a solid substance, with a minimum purity of 99.9%, corresponding to the chemical compound C7H6O2 (CAS 65-85-0). It is classified under zootechnical additives, functional group 4d (other zootechnical additives, urinary pH reduction).
What it is for. It is used in weaned piglets and pigs for fattening to help lower urinary pH, a recognised zootechnical function for this additive. In weaned piglets, its use is restricted to animals up to 25 kg body weight, and complementary feeds containing it must be mixed with other feed materials of the daily ration. A study in weaned lambs reported effects on growth performance, nutrient digestibility and nitrogen metabolism, illustrating a possible research use beyond the authorised species, but this does not define an application level.
Points to watch. The additive must not be combined with other sources of benzoic acid or benzoates. Maximum impurity levels are set for phthalic acid and biphenyl (≤100 mg/kg each). Storage and thermal processing conditions must be specified in the instructions for use, and personal protective equipment (respiratory, eye and skin protection) is required when organisational measures cannot eliminate handling risks.
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