Effect of Xylanase Supplementation on the Net Energy for Production, Performance and Gut Microflora of Broilers Fed Corn/Soy-based Diet

Abstract

The objective of this study was to assess the effect of xylanase on net energy for production, performance, nutrient digestion and gut microflora of broilers fed corn/soy-based diet. Eighty-four day-old male broiler chicks were allocated to two groups receiving two treatments, respectively. Each treatment had six replicate cages with seven broilers per cage. The diets were based on corn and soybean. The treatments were: i) basal diet reduced in apparent metabolizable energy (-0.63 MJ/kg compared to commercial diet specifications); ii) basal diet supplemented xylanase at 4,000 u/kg feed. The experiment used the auto-control, open circuit respiration calorimetry apparatus to examine the heat production and net energy for production. The results revealed that xylanase supplementation did not affect growth performance and diet AME value, but increased NE p value by 18.2% (p<0.05) and decreased daily heat production per kg 0.75 by 31.7% (p<0.05). There was no effect (p>0.05) of xylanase supplementation on the ileal digestibility of N and hemicelluloses, but the ileum digestibility of energy was increased by 2% by xylanase supplementation (p<0.05). Xylanase supplementation increased (p<0.05) the count of lactobacillus and bifidobacterial in the caecum.

Effects of xylanase supplementation on growth performance, nutrient digestibility, blood parameters, fecal microbiota, fecal score and fecal noxious gas emission of weaning pigs fed corn‐soybean meal‐based diet

“…Meanwhile, xylanase supplementation reduces the detrimental effects of arabinoxylans and increases digestibility of N and GE. The improvement in digestibility observed in this study was consistent with the results of Nian et al () and Passos et al (), who reported that the supplementation of xylanase in corn‐soybean meal based diet improved ileal digestibility of DM, organic matter, GE, neutral detergent fiber and crude ash. The improvement in ATTD of DM, N and GE with xylanase supplementation can, in turn, induce a significant increase in the ADG and G:F. These findings, combined with the improvement in growth performance with supplementation of 0.01% xylanase to corn‐soybean meal based diet in this study, suggested that the use of xylanase exerted a beneficial effect on weaning pig performance when a corn‐soybean meal based diet is used.…”

Effects of dietary supplementation of Trichoderma pseudokoningii fermented enzyme powder on growth performance, intestinal morphology, microflora and serum antioxidantive status in broiler chickens

“…In this study, we observed an improvement in gut microflora by supplementation of broiler diet with EP, which was in agreement with Nian et al (2011), who found that lactobacilli and bifidobacteria counts increased with the supplementation of xylanase in broilers. Bedford (2000) also showed that exogenous enzymes could alter microbial populations indirectly within the GI tract through their utilisation of the substrates that bacteria use as a carbon source.…”

“…Xylanase supplementation has been shown to be beneficial to the performance of feed-restricted broilers (Pinheiro et al 2004). Nian et al (2011) also demonstrated that the addition of xylanase to a corn-soybean-based diet in broilers significantly improved feed energy as well as FCR. This improvement could be due to the ability of NSPase to break down the encapsulation of starch and proteins in botanical resources.…”

“…However, researchers recently found that the addition of NSPase to the corn-soybean based diet of broilers improved nutrient availability (Cowieson and Ravindran 2008), since broken down cell wall materials enhanced the access of endogenous enzymes and released nutritive contents. Xylanase has been reported to improve lactobacilli and bifidobacteria counts in the caecum of broilers fed a corn-soybean based diet (Nian et al 2011). Passos et al (2015) also proved that supplementation with xylanase improved nutrient digestion in pigs fed a corn-soybean based diet.…”

Influence of Fat Source and Xylanase Supplementation on Performance, Utilisation of Energy and Fat, and Caecal Microbiota Counts in Broiler Starters Fed Wheat-Based Diets

“…Contrary to the expectations, xylanase resulted in increased numbers of Clostridium in birds fed diets with both fat sources. The present results are in contrast with those of Nian et al (2011) who reported that birds fed soybean oil diets supplemented with xylanase had higher caecal counts of Lactobacillus than those fed diets without xylanase. Choct et al (2004) also reported that xylanase supplementation of wheat-based diets reduced the numbers of Clostridium perfingens in caecal contents.…”