Lignocellulosic biomass represents the most abundant renewable material in the world, whereas agricultural residues, including those from maize cultivation, comprise a significant fraction of the total plant waste that can be repurposed for various applications. Lignocellulosic feedstocks are non-edible and consist mainly of: cellulose, hemicellulose, and lignin, along with extractive compounds. Pretreatment is required to separate the lignocellulosic biomass into its constituents for efficient utilization. Even after extensive research and development of numerous techniques, pretreatment remains one of the most expensive phases in converting lignocellulosic biomass into biobased products.

The main aim of this study was to assess the effect of the micronization process applied on cereals and legumes, as feed components, on the efficiency of feed conversion, digestibility, and daily gain of weaned piglets. The results showed that the digestibility of the investigated micronized maize and wheat flakes was higher than that of the respective raw grains. The digestibility of the feed mixture prepared with micronized cereals and legumes was higher (84.74%) than that of the commercial feed mixture (80.27%). The feed mixture prepared with micronized cereals and legumes manifested beneficial effects on weaned piglets’ daily gain, feed conversion, and digestibility in the feeding trial.