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The aim is to assess how protease supplementation in low protein diets affects growth performance and gut microbiome in pigs.

Optimizing gut microbial balance and growth performance in growing pigs through protease-supplemented low protein diets

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The aim is to assess how protease supplementation in low protein diets affects growth performance and gut microbiome in pigs.
Eighty pigs were chosen and divided into four groups based on diet: high CP and low CP with 0.1% or 0.2% protease.
Participants were allocated to groups by initial body weight and sex.
Each dietary group had four replicates with five pigs per pen.
Pigs on low CP diets with protease had greater body weight, daily gain, and feed conversion than those on high CP diets.
Ammonia emissions were lower in the group receiving 0.2% protease compared to the low CP group.
Microbiome analysis showed a favorable shift towards Firmicutes and increased short-chain fatty acids, benefiting intestinal health.

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Evaluates protease's effect on growth performance in pigs fed low protein diets, suggesting improved feed efficiency.

Cho et al. (2026) studied this question.

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