Evaluation of the Biological Safety of Xylooligosaccharides for Broilers

SUO Haiqing, XU Guohui, XIAO Lin, CHEN Xiaogang, XIA Ruirui, ZAHNG Liyang, LU Lin, LUO Xugang

doi:10.3969/j.issn.1006-267x.2015.06.021

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 6: 1841 - 1852

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.06.021

Feed Security

Evaluation of the Biological Safety of Xylooligosaccharides for Broilers

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1. Mineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
2. High-Technology Development Zone, Functional Sugar Engineering Research Center of Shandong Province, Yucheng 251200, China;
3. High-Technology Development Zone, Shandong Key Laboratory of Straw and Stover Biorefinement Technologies, Yucheng 251200, China

Received date: 2015-01-26

Online published: 2015-06-17

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Abstract

This experiment was conducted to investigate the effect of dietary xylooligosaccharides level on growth performance, hematology, plasma biochemical traits, weight or length indices of organs, and histopathological changes of broilers during periods of days 1 to 21 and 22 to 42 so as to evaluate the biological safety of xylooligosaccharides for broiler chicks. A total of 240 one-day-old commercial Arbor Acres broilers were randomly allocated by bodyweight to one of four groups with six replicates per group and ten broilers (half male and half female) per replicate. Birds were fed the diets supplemented with 0, 160, 800 or 1 600 mg/kg xylooligosaccharides for an experimental duration of 42 days. Results showed that birds fed the diet supplemented with 1 600 mg/kg xylooligosaccharides significantly improved the plasma globulin (GLB) concentration on day 21and plasma glucose (GLU) concentration on day 42 (P<0.05), significantlydecreased creatine phosphokinase (CPK) and glutamic-pyruvic transaminase (ALT) activities in plasma on day 21 and plasma triglyceride (TG) concentration on day 42 (P<0.05). The relative weight of kidney on day 42 was significantly increased by the addition of 800 mg/kg xylooligosaccharides (P<0.05). There were no significant differences in growth performance, blood physiological or other plasma biochemical and organ development parameters among all groups (P>0.05); and no pathological changes of heart, liver, lung, kidney and pancreas were observed among all added groups. Therefore, the upper limitation of added xylooligosaccharides at 160 mg/kg in the corn-soybean meal diet will be 10 times safe for broilers.

Key words： xylooligosaccharides; biological safety evaluation; broilers

Cite this article

SUO Haiqing, XU Guohui, XIAO Lin, CHEN Xiaogang, XIA Ruirui, ZAHNG Liyang, LU Lin, LUO Xugang . Evaluation of the Biological Safety of Xylooligosaccharides for Broilers[J]. Chinese Journal of Animal Nutrition, 2015 , 27(6) : 1841 -1852 . DOI: 10.3969/j.issn.1006-267x.2015.06.021

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