Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Feeding dietary non-starch polysaccharides supplemented with xylanase could improve the performance of broilers

  • Venuste Maniraguha (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Jun Seon Hong (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Myunghwan Yu (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Elijah Ogola Oketch (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Young-Joo Yi (Department of Agricultural Education, College of Education, Suncheon National University) ;
  • Hyeonho Yun (CJ CheilJedang BIO) ;
  • Dinesh Darshaka Jayasena (Department of Animal Science, Uva Wellassa University of Sri Lanka) ;
  • Jung Min Heo (Department of Animal Science and Biotechnology, Chungnam National University)
  • Received : 2023.09.05
  • Accepted : 2023.10.17
  • Published : 2024.09.30
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Abstract

The impact of dietary non-starch polysaccharides (NSP) on performance and carcass traits of broilers fed wheat-bran substituted into corn-soybean meal-based diets supplemented with xylanase was investigated. A total of 280 (7-day-old) Ross 308 broilers were randomly allotted to one of five dietary treatments with 8 replicates, 7 chicks per pen. Treatments were; i) CON: Control diet, ii) CON-X (CON + 3,000 U/kg xylanase), iii) L-X: low NSP (2% wheat bran in CON + 3,000 U/kg xylanase), iv) M-X: medium NSP (4% wheat bran in CON + 3,000 U/kg xylanase), v) H-X: higher NSP (8% wheat bran in CON+ 3,000 U/kg xylanase). Birds fed the H-X diet increased (p < 0.05) daily gains, and average daily feed intake and had marginally improved body weights (p = 0.074) on day 35. Relatively, the H-X diet tended to increase the average daily gains (p = 0.053; p = 0.073) of birds during the grower phase (d 24-35) and the entire experimental period (d 8-35), respectively. Moreover, there were no significant differences among treatments in the feed conversion ratio of birds throughout the entire experiment period. Birds fed diets CON-X, L-X, and M-X had improved (p < 0.05) the ileal digestibility of energy on d 24 and 35 compared to those fed the H-X diet. Furthermore, birds fed diet CON-X improved (p < 0.05) N digestibility on d 24. Improved carcass moisture content and lowered crude fat of leg meat (p < 0.05) were noted in birds fed the diet M-X and H-X on d 35, respectively. The intestinal viscosity was reduced (p < 0.05) in xylanase-supplemented treatments CON-X, L-X, M-X, and H-X diets when compared to CON. Our results suggest that supplementing 3,000 U/kg xylanase in a higher NSP (8% wheat bran substituted level) diet could improve the intestinal viscosity and growth performance of broilers.

Keywords

Acknowledgement

The authors are grateful to CJ CheilJedang BIO, Seoul 04560, Korea, for the financial support and supply of xylanase enzyme used in this study.

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