Energy utilization and growth performance of chickens fed novel wheat inbred lines selected for different pentosan levels with and without xylanase supplementation

Abstract

Different F5 recombinant inbred lines from the cross Yumai 34 × Ukrainka were grown in replicated trials on a single site in one harvest year at Rothamsted Research. A total of 10 samples from those lines were harvested and used in a broiler experiment. Twenty nutritionally complete meal-form diets that had 630 g/kg of wheat with different amounts of pentosan, with and without exogenous xylanase supplementation, were used to compare broiler growth performance and determine apparent metabolizable energy corrected for N retention (AMEn). We examined the relationship between the nutritive value of the wheat samples and their chemical compositions and results of quality tests. The amounts of total and water soluble pentosans in wheat samples ranged from 36.7 to 48.0 g/kg DM, and 6.7 to 11.6 g/kg DM, respectively. The mean crude oil and protein contents of the wheat samples were 10.5 and 143.9 g/kg DM, respectively. The average determined value for the kinematic viscosity was 0.0018 mPa.s, and 2.1 mPa.s for the dynamic viscosity. The AMEn of the wheat-based diets had a maximum range of 0.47 MJ/kg DM within the ten wheat samples that were tested. Xylanase supplementation improved (P < 0.05) dietary AMEn, dry matter, and fat digestibility coefficients. There was a positive (P < 0.05) relationship between in vitro kinematic viscosity of the wheat samples and the total pentosan content. There was a negative relationship between the total pentosan content in the wheat and broiler growth performance. An increase by 10 g of pentosan per kg of wheat reduced (P < 0.001) daily feed intake and weight gain by 2.9 g and 3.5 g, respectively. The study shows that the feeding quality of wheat samples can be predicted by their total pentosan content. Supplementary xylanase improved energy and nutrient availability of all wheat samples that was independent of differences in pentosan content.

Secretory expression and characterization of xylanase isolated from Bacillus subtilis E20 increase the utilization of plant ingredients in tilapia feed

“…Because of its digestive capacity, xylanase attracts the attention as a candidate for improving the efficiency of feed utilization and degrading NSPs in feed ingredients of plant origin (Bedford & Schulze, ). Although xylanase has been used extensively in the poultry (Pirgozliev et al, ) and livestock (Prandini et al, ) industries to enhance energy and nutrient availability in plant ingredients, little is known about its application in aquaculture. Recently, the use of exogenous carbohydrases in aquafeed has attracted attention.…”

Combined effect of using near‐infrared spectroscopy for nutritional evaluation of feed ingredients and non‐starch polysaccharide carbohydrase complex on performance of broiler chickens

“…() and Pirgozliev et al . () showed that the beneficial effects of the addition of NSP enzymes on the digestibility of wheat‐ and soybean meal‐based diets have been widely investigated. Furthermore, Williams et al .…”

“…NSP enzymes also allow a larger proportion of inclusion and even reduce the negative effects of low-quality plant ingredients in monogastric diets, contributing to cost reductions as well as increased formulation flexibility (Zijlstra et al 2010;Lafond et al 2011). Kiarie et al (2014) and Pirgozliev et al (2015) showed that the beneficial effects of the addition of NSP enzymes on the digestibility of wheat-and soybean meal-based diets have been widely investigated. Furthermore, Williams et al (2014) highlighted the possible use of these enzymes to increase the nutritional value of low-energy diets, thus allowing a reduction of the AME without compromising birds' performance.…”

Does the effect of pelleting depend on the wheat sample when fed to chickens?

“…Research on feeding value of wheat for poultry is well documented (Gutierrez-Alamo et al, 2008;Ball et al, 2013;Pirgozliev et al, 2015). However, there is inconsistence in the literature as some of the authors report responses on growth performance and nutrient availability to mash diets (Scott et al, 1998;Rose et al, 2001;Steenfeldt, 2001;Pirgozliev et al, 2003), others reported responses to pelleted diets (Wiseman et al, 2001;Carre et al, 2005).…”