Effects of Non-Starch Polysaccharides Complex Enzyme on Performance and Content of Nitrogen Containing Compounds in Excreta of Broilers

SUN Chunyang; HE Kelin; SA Rena; ZHANG Hongfu; GAO Jie; TONG Yongjuan

doi:10.3969/j.issn.1006-267x.2014.05.031

2014 , Vol. 26 >Issue 5: 1370 - 1378

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.05.031

Short Communications

Effects of Non-Starch Polysaccharides Complex Enzyme on Performance and Content of Nitrogen Containing Compounds in Excreta of Broilers

SUN Chunyang ,
HE Kelin ,
SA Rena ,
ZHANG Hongfu ,
GAO Jie ,
TONG Yongjuan

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State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing 100193, China

Received date: 2013-12-18

Online published: 2014-05-05

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Abstract

The aim of this experiment was to study the effects of non-starch polysaccharides complex enzyme on performance and the content of nitrogen containing compounds in excreta of broilers. A single factorial randomized design was adopted, and a total of 208 newly-hatched Arbor Acres male broilers were randomly allotted into 4 groups with 4 replicates of 13 broilers. The four experimental diets were a corn-soybean diet (C group), the corn-soybean diet + NSP complex enzyme (C+E group), a wheat-soybean diet (W group) and the wheat-soybean diet + NSP complex enzyme (W+E group), respectively. The NSP complex enzyme included xylanase, β-glucanase, cellulase, pectinase and β-mannanase. The appropriate combination and supplemental level were obtained from screening test in vitro. The trial lasted for 42 d. The results showed as follows: 1) during 1 to 21 d, the average daily gain (ADG) in W+E group was significantly higher than that in W group (P<0.05), and the feed/gain (F/G) was significantly lower than that in W group (P<0.01); compared with C group, the F/G in C+E group tended to decrease (0.05<P<0.10), and the ADG had no significant difference (P>0.05). During 22 to 42 d, compared with W group, the F/G in W+E group was significantly decreased (P<0.05), and the ADG tended to increase (0.05<P<0.10); there were no significant differences in ADG and F/G between C+E group and C group (P>0.05). 2) At days 14, 21, 28, 35 and 42, the ammonia content in excreta in C group and C+E group was significantly higher than that in W group and W+E group (P<0.01); at day 21, the ammonia content in excreta in C+E group was significantly lower than that in C group (P<0.01), and there was no significant difference in ammonia content in excreta between W group and W+E group (P>0.05). 3) At days 21, 28, 35 and 42, the uric acid content in excreta in C group and C+E group was significantly higher than that in W group and W+E group (P<0.01), and there was no significant difference in uric acid content in excreta between W group and W+E group and between C group and C+E group (P>0.05). 4) At days 14, 21, 28, 35 and 42, the urea content in excreta in C group and C+E group tended to increase (P>0.05), and except days 14 and 35, there was no significant difference in urea content between W group and W+E group and between C group and C+E group (P>0.05). In conclusion, the corn-soybean diet and wheat-soybean diet with NSP complex enzyme can improve the performance of broilers; the wheat-soybean diet with NSP complex enzyme can replace corn-soybean diet , and the performance can achieve corn-soybean diet level. The ammonia, uric acid and urea contents in excreta of broilers fed corn-soybean diet are higher than those of broilers fed wheat-soybean diet. The wheat-soybean diet with NSP complex enzyme can decrease the ammonia content in excreta.

Key words： non-starch polysaccharides complex enzyme; performance; ammonia; uric acid; broiler

Cite this article

SUN Chunyang , HE Kelin , SA Rena , ZHANG Hongfu , GAO Jie , TONG Yongjuan . Effects of Non-Starch Polysaccharides Complex Enzyme on Performance and Content of Nitrogen Containing Compounds in Excreta of Broilers[J]. Chinese Journal of Animal Nutrition, 2014 , 26(5) : 1370 -1378 . DOI: 10.3969/j.issn.1006-267x.2014.05.031

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