Pigs’ husbandry as case study to test effects of vegetable residues’ hydrolysates on animals

Soluble biopolymers (SBO) are research products obtained from alkaline hydrolysis of municipal and agriculture bio-residues. They contain a mix of soluble macromolecules with different C types and functional groups. These features make SBO multipurpose products for the chemical industry, agriculture and animal husbandry. As such, they may contribute to the development of bio-based circular economy by recycling renewable carbon over urban and agriculture environments. To foster production and commercialization, assessment of SBO’s compliance with countries’ regulations is mandatory. The authors performed the present in vivo pigs study to investigate quality, safety, and efficacy of SBO’s as animal feed supplement. Total 106 male and female piglets were fed 42 days with protein-based diets containing 0.1 and 0.2 % SBO. Pigs grew from average 7.7 to 26 kg. Average mortality rate was 3.9 %. Relatively to control diets with no added SBO, the diets containing 0.1 and 0.2 % SBO evidenced no significant effects on pigs’ growth, mortality, and anatomy and pathology of dead animals. A previous rabbit study reported similar results for SBO supplemented diets. The authors discuss the economic and environmental implications of the results in relation to SBO potential marketability.