动物营养学报 >

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

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

研究简报 Short Communications

非淀粉多糖复合酶对肉仔鸡生产性能和排泄物中含氮物含量的影响

  • 孙春阳 ,
  • 何科林 ,
  • 萨仁娜 ,
  • 张宏福 ,
  • 高杰 ,
  • 仝永娟
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  • 中国农业科学院北京畜牧兽医研究所, 动物营养学国家重点实验室, 北京 100193

收稿日期: 2013-12-18

  网络出版日期: 2014-05-05

基金资助

现代农业产业技术体系建设专项资金（CARS-42）；国家科技支撑计划项目（2012BDA39B01）；中国农业科学科技院创新工程（ASTIP-IAS07）

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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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摘要

本试验旨在研究饲粮中添加非淀粉多糖（NSP）复合酶对肉仔鸡生产性能和排泄物中含氮物含量的影响。试验采取单因子完全随机设计，选用208只1日龄爱拨益加肉仔鸡公雏，随机分成4组，每组4个重复，每个重复13只。分别饲喂玉米-豆粕型饲粮（C组）、玉米-豆粕型饲粮+NSP复合酶（C+E组）、小麦-豆粕型饲粮（W组）和小麦-豆粕型饲粮+NSP复合酶（W+E组）。NSP复合酶由木聚糖酶、β-葡聚糖酶、纤维素酶、果胶酶、β-甘露聚糖酶组成，酶谱组合为体外试验筛选后获得最适宜添加量。试验期42 d。结果表明：1）试验1~21 d，W+E组平均日增重（ADG）显著高于W组（P<0.05），料重比（F/G）显著低于W组（P<0.05）；与C组相比，C+E组F/G有降低趋势（0.05<P<0.10），ADG无显著差异（P>0.05）。试验22~42 d，与W组相比，W+E组F/G显著降低（P<0.05），ADG有提高的趋势（0.05<P<0.10），C+E组ADG和F/G与C组相比无显著差异（P>0.05）。2）试验第14、21、28、35、42天，C组和C+E组排泄物中氨气含量极显著高于W组和W+E组（P<0.01）；第21天时，C+E组排泄物中氨气含量极显著低于C组（P<0.01），W+E组排泄物中氨气含量与W组无显著差异（P>0.05）。 3）试验第21、28、35、42天，C组和C+E组排泄物中尿酸含量极显著高于W组和W+E组（P<0.01），W组和W+E组之间与C组和C+E组之间排泄物中尿酸含量均无显著差异（P>0.05）。4）试验第14、21、28、35、42天，C组和C+E组与W组和W+E组相比，排泄物中尿素含量有增高的趋势（P>0.05），除第14、35天外，W组和W+E组之间与C组和C+E组之间排泄物中尿素含量均无显著差异（P>0.05）。综上所述，小麦-豆粕型饲粮和玉米-豆粕型饲粮添加NSP复合酶可有效改善肉仔鸡生产性能；小麦-豆粕型饲粮添加NSP复合酶可替代玉米-豆粕型饲粮，生产性能可达到玉米-豆粕型饲粮水平。玉米-豆粕型饲粮使肉仔鸡排泄物中氨气、尿素和尿酸含量高于小麦-豆粕型饲粮，小麦-豆粕型饲粮添加NSP复合酶后可降低排泄物中氨气含量。

关键词： 非淀粉多糖复合酶; 生产性能; 氨气; 尿酸; 肉仔鸡

本文引用格式

孙春阳 , 何科林 , 萨仁娜 , 张宏福 , 高杰 , 仝永娟 . 非淀粉多糖复合酶对肉仔鸡生产性能和排泄物中含氮物含量的影响[J]. 动物营养学报, 2014 , 26(5) : 1370 -1378 . DOI: 10.3969/j.issn.1006-267x.2014.05.031

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

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