Evaluation of a thermotolerant xylanase on broiler growth performance and dietary ileal digestible energy value

Effects of a combination of phytase and multi-carbohydrase enzymes in low-density corn–soybean meal based diets on growth performance and ileal nutrients digestibility of male broilers

“…Karimi et al (2013) reported that there was no interaction between the supplementation of phytase and xylanase, suggesting that in C-SBM diets the modes of action of these two enzymes are independent of each other. Moreover, a similar finding was reported by Flores et al (2017) who showed that supplementation of multi-carbohydrase to C-SBM low energy diets containing phytase had no more beneficial effect than multi-carbohydrase-free diets. Xylanase has been proposed to stimulate a prebiotic effect by increasing concentrations of arabinoxylo-and xylooligosaccharides in the large intestine and caeca, which may increase volatile fatty acid (VFA) production in caeca (Massey-O'Neill, Singh, et al, 2014).…”

Safety and efficacy of a feed additive consisting of endo‐1,4‐β‐xylanase produced by Komagataella phaffii DSM 33574 (Xylamax) for chickens and turkeys for fattening, chickens reared for laying/breeding, turkeys reared for breeding and minor poultry species for fattening or raised to the point of lay (BioResource international, Inc.)

“…To support the efficacy of the additive the applicant submitted four trials in chickens for fattening, two designed as balance trials 32 and the other two as long‐term trials 33 which also included measurements on the apparent metabolisable energy content of the diets. The applicant also submitted five published papers (Flores et al., 2017 ; Nusairat et al., 2018 ; Duarte et al., 2019 , 2020 ; Nusairat and Wang, 2020 ).…”

“…39 Nusairat et al (2018) and Nusairat and Wang (2020). 40 Flores et al (2017). 41 Flores et al (2017), Nusairat et al (2018) and Nusairat and Wang (2020).…”

Safety and efficacy of a feed additive consisting of endo‐1,4‐β‐xylanase produced by Komagataella phaffii DSM 33574, and viable spores of Bacillus velezensis DSM 21836 and Bacillus licheniformis ATCC 53757 (EnzaPro) for chickens for fattening, chickens reared for laying/breeding, turkeys for fattening, turkeys reared for breeding and growing minor poultry species (BioResource International (BRI), Inc.)

“…In addition to the in vivo trials, the applicant submitted five publications in which the effect of the additive was studied (Flores et al., 2017 ; Nusairat et al., 2018 ; Duarte et al., 2019 , 2020 ; Nusairat and Wang, 2020 ). Two of them (Duarte et al., 2019 , 2020 ) reported studies in pigs, which are out of the scope of the current assessment.…”