November 30, 2025FSA research and evidence.Open Access

Assessment on the Safety and Efficacy of a Feed Additive Consisting of a Protease (Subtilisin EC 3.4.21.62) and Bacillus Velezensis NRRL B-50508, B. Velezensis NRRL B-50509 and B. Subtilis NRRL B-50510 (Syncra® SWI 201 TPT) for Pigs for Fattening and Other Growing Porcine Species (Danisco (UK) ltd.) (RP2274)

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Discussion

Assessment shows protease additive improves safety and efficacy in pigs, indicating potential environmental benefits.

Additive includes protease and Bacillus subtilis, enhancing pig growth and safety.
The protease additive showed efficacy at 5,000 units per kg in growing porcine species.
Analysis of safety based on regulatory review confirmed no risk for the target species.
Findings support the use of similar additives in livestock for enhanced digestive performance.

A 2025 study studied this question.

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