ARTICLE FEED & ADDITIVE MAGAZINE May 2023 61 the kinetics of protein digestibility in SPC is dependent on the origin and process applied to the product. Several SPC sources are available in the market. - The potato protein concentrate appears to have a lower digestibility after the stomach (40%) and slower kinetics of protein digestibility over time (52% at 3 hours of the intestinal phase). Being rich in crude protein (77%), the potato protein concentrate will contribute to a high amount of non-digested protein in the animal gut. Compared to these feed materials, YELA PROSECURE shows interesting kinetics of protein digestibility with more than 90% of the proteins digested after 3 hours of the intestinal phase. One direct consequence of that is a negligeable amount of non-digested protein that reaches the lower gut. YELA PROSECURE is, therefore, a valuable protein source that can help reduce the risk of gut dysbiosis associated with non-digested proteins. In addition, a flash and a fast protein digestibility is important in terms of protein functionality with direct and indirect benefits for the animals. BENEFITS OF A FLASH AND A FAST PROTEIN DIGESTIBILITY FOR ANIMALS Free amino acids are known to be beneficial for digestive health at three main levels: - Free amino acids and especially the branched chain amino acids (BCAAs) — leucine, isoleucine and valine — are involved in the maintenance of the gut mucosa mass and integrity. When they are quickly absorbed, BCAAs play a positive role on the cellular multiplication by supporting the cell proliferation and the amino acids transporters. The direct consequence is a protein synthesis increase and a reduction of the protein degradation mechanism in the intestinal crypts (Duan et al., 2018) - Glutamic acid, glutamine and glycine help support microbiota growth - Arginine, glutamine, methionine, tryptophane and threonine help support the gut immune system activity as the gut contains around 70% of the total immune cells of the body. • A concrete example for piglets around weaning: In this high growth period, the synthesis and protein content in the gut is increasing at the same time Figure 5. Kinetics of protein digestibility of various protein sources
RkJQdWJsaXNoZXIy MTUxNjkxNQ==