Effectiveness of dietary xylo-oligosaccharides for broilers fed a conventional corn-soybean meal diet
SUO Hai-qing, LU Lin, XU Guo-hui, XIAO Lin, CHEN Xiao-gang, XIA Rui-rui, ZHANG Li-yang, LUO Xu-gang
1、Mineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193,P.R.China
2、High-Technology Development Zone, Functional Sugar Engineering Research Center of Shandong Province,Yucheng 251200,P.R.China
3、High-Technology Development Zone, Shandong Key Laboratory of Straw and Stover Biorefinement Technologies, Yucheng 251200, P.R.China
摘要 An experiment was conducted to investigate the effect of dietary supplementation of xylo-oligosaccharides (XOS) on growth performance, meat quality, immune functions, duodenal morphology and intestinal microbial populations of broilers fed a conventional corn-soybean meal basal diet. A total of 450 1-day-old commercial Arbor Acres male broiler chicks were randomly allocated by bodyweight to 1 of 5 treatments with 6 replicate cages (15 broilers per cage) for each of 5 treatments in a completely randomized design. Chicks were fed the basal corn-soybean meal diets supplemented with 0, 25, 50, 75, or 100 mg of XOS kg–1 of diet, respectively, for an experimental duration of 42 days. The results showed that supplementation of XOS affected feed conversion rate (feed/gain, F/G) during days 22–42 and 1–42 (P<0.03), drip loss in thigh muscle (P=0.02), and duodenal crypt depth (P=0.005) on day 42, but had no effect (P>0.05) on all other measured indices. The chicks fed the diet supplemented with 100 mg of XOS kg–1 had the lowest (P<0.05) F/G and drip loss in thigh muscle. The drip loss in thigh muscle decreased linearly (P=0.003) as the supplemented XOS increased. Duodenal crypt depth decreased (P<0.05) at the supplemental level of 75 mg of XOS kg–1. The results indicate that dietary supplementations of 75 and 100 mg of XOS kg–1 are beneficial to broilers fed a conventional corn-soybean meal diet.
Abstract An experiment was conducted to investigate the effect of dietary supplementation of xylo-oligosaccharides (XOS) on growth performance, meat quality, immune functions, duodenal morphology and intestinal microbial populations of broilers fed a conventional corn-soybean meal basal diet. A total of 450 1-day-old commercial Arbor Acres male broiler chicks were randomly allocated by bodyweight to 1 of 5 treatments with 6 replicate cages (15 broilers per cage) for each of 5 treatments in a completely randomized design. Chicks were fed the basal corn-soybean meal diets supplemented with 0, 25, 50, 75, or 100 mg of XOS kg–1 of diet, respectively, for an experimental duration of 42 days. The results showed that supplementation of XOS affected feed conversion rate (feed/gain, F/G) during days 22–42 and 1–42 (P<0.03), drip loss in thigh muscle (P=0.02), and duodenal crypt depth (P=0.005) on day 42, but had no effect (P>0.05) on all other measured indices. The chicks fed the diet supplemented with 100 mg of XOS kg–1 had the lowest (P<0.05) F/G and drip loss in thigh muscle. The drip loss in thigh muscle decreased linearly (P=0.003) as the supplemented XOS increased. Duodenal crypt depth decreased (P<0.05) at the supplemental level of 75 mg of XOS kg–1. The results indicate that dietary supplementations of 75 and 100 mg of XOS kg–1 are beneficial to broilers fed a conventional corn-soybean meal diet.
This work was supported by the Shandong Longlive Bio-Technology Co. Ltd., China, the Agricultural Science and Technology Innovation Program, China (ASTIP-IAS08), the Special Fund for Agro-Scientific Research in the Public Interest, China (201403047), and the China Agriculture Research System (CARS-42).
SUO Hai-qing, LU Lin, XU Guo-hui, XIAO Lin, CHEN Xiao-gang, XIA Rui-rui, ZHANG Li-yang, LUO Xu-gang.
2015.
Effectiveness of dietary xylo-oligosaccharides for broilers fed a conventional corn-soybean meal diet. Journal of Integrative Agriculture, 14(10): 2050-2057.
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