Effect of xylanase and glucanase supplementation to a cereal-based, threonine-limited diet on the nitrogen balance of growing pigs

Abstract

In cereal-based diets, non-starch polysaccharides (NSP) lower precaecal nutrient absorption and increase endogenous protein and amino acid (AA) losses. Adding exogenous NSP-degrading enzymes aims amongst others to reduce these negative effects and to thereby improve protein and AA supply. However, biased results exist in the literature on their efficacy in growing pigs. Hence, the objective of this study was to analyse the effects of different levels of xylanase and beta-glucanase supplementation. Nitrogen (N) retention from a threonine-limited diet was chosen as an indirect indicator for differences in praecaecal threonine absorption and endogenous protein and AA losses. During three balance periods, 12 male pigs with a bodyweight of 31-66 kg were used in a cross-over design. They received three different diets based on wheat, barley, rye, and soybean meal containing 0, 40 or 80 mg/kg of an enzyme preparation containing endo-1,4,-beta-xylanase and endo-1,4-beta-glucanase. N excretion and retention were identical in animals of the different treatment groups, stressing that enzyme supplementation did not affect threonine absorption and/or endogenous protein and AA losses neither at medium nor at high supplementation level. Hence, in the present trial, beta-glucanase and xylanase addition to cereal diets did not improve protein and AA availability in growing pigs of a body weight > 30 kg.

Proteome changes in the small intestinal mucosa of growing pigs with dietary supplementation of non-starch polysaccharide enzymes

“…The supplementation of exogenous enzymes such as xylanases and β-glucanases in pig diets may facilitate the hydrolysis of the main NSPs and increase the utilization of available raw materials [5, 6]. Adding exogenous enzymes to cereal diets improves both nutrient digestibility and growth performance in pigs [7, 8].…”

Influence of Feed Additive "Enzaktive Mix" on the Hematological Profile of the Blood of Sows and Their Piglets

“…Зростання маси тіла та середньодобових приростів може бути пов'язано з кращим засвоєнням спожитого комбікорму через здоровий та краще розвинений кишечник (Prudyus, 2023). Ферменти, які входять до складу досліджуваної кормової добавки, покращують розщеплення поживних речовин, збільшуючи коефіцієнти перетравлення та засвоєння поживних речовин комбікорму (Susenbeth et. al., 2011;Balanchuk et.…”