›› 2010, Vol. 37 ›› Issue (8): 5-8.

• 动物营养与饲料科学 •    下一篇

添喂β-甘露聚糖酶对蛋鸡生产性能和日粮表观利用率的影响

郑江平1，朱文涛2   

  1. （1.上海农林职业技术学院，上海 201600 ；2.河南宏展农牧集团，郑州 450008）
  • 收稿日期:1900-01-01 修回日期:2010-06-02 出版日期:2010-08-20 发布日期:2010-08-20

Effect of β-mannanase on Performance and Apparent Nutrient Availability in Laying Hens

ZHENG Jiang-ping1，ZHU Wen-tao2   

  1. (1.Shanghai Vocational and Technical College of Agriculture and Forestry, Shanghai 201600, China；2.Hongzhan Group in Henan, Zhengzhou 450008, China)
  • Received:1900-01-01 Revised:2010-06-02 Online:2010-08-20 Published:2010-08-20

摘要： 本试验旨在研究豆粕型日粮中添喂β-甘露聚糖酶对蛋鸡生产性能和日粮表观利用率的影响。选择健康新罗曼产蛋鸡（33周龄）600羽，随机分为3组，每组200羽鸡。对照组不添加β-甘露聚糖酶，试验1组添加0.03% β-甘露聚糖酶,试验2组添加0.05% β-甘露聚糖酶,试验期35 d。结果蛋鸡(33～37周龄)日粮中添加0.03%、0.05% β-甘露聚糖酶蛋重比对照组分别提高5.12%（P<0.05）和7.08%（P<0.05）；蛋壳厚分别增加11.60%（P<0.05）和9.39%（P<0.05）。蛋鸡(51～55周龄)饲喂0.03%、0.05% β-甘露聚糖酶产蛋率比对照组分别提高4.20%（P<0.05）和5.55%（P<0.05）。蛋鸡(36周龄)饲喂0.03%、0.05% β-甘露聚糖酶干物质、有机物、粗蛋白质和钙利用率分别比对照组提高6.15%（P<0.05）和4.10%（P<0.05）、6.36%（P<0.05）和6.60%（P<0.05）、2.04%（P<0.05）和3.21%（P<0.05）、3.84%（P<0.05）和7.08（P<0.05）。蛋重比对照组分别提高了1.32%（P<0.05）和2.46%（P<0.05）。饲喂β -甘露聚糖酶可以提高产蛋鸡生产性能和饲料表观消化率。

关键词: β-甘露聚糖酶; 蛋鸡; 蛋重; 产蛋率; 表观消化率

Abstract: The objective of this study was to investigate the effect of β-mannanase added in SBM based diets on production performance and apparent nutrient availability of laying hens. Six hundred healthy Roman hens (laying hens of 33 weeks old) were selected and randomly divided into 3 groups with two hundred hens in each group. The control group and experiment group 2 and 3 were fed with a same diet added 0%, 0.03% and 0.05% β-mannanase respectively. The study lasted 35 days with the results showing that the egg weight (laying hens of 33 to 37 weeks old) of experiment group 2 and 3 increased 5.12% (P<0.05) and 7.08% (P<0.05) respectively than control group 1; the eggshell thick increased 11.60% (P<0.05) and 9.39% (P<0.05). The egg production rate of experiment group 2 and 3 (laying hens of 51 to 55 weeks old) increased 4.20% (P<0.05) and 5.55% (P<0.05) respectively more than control group 1. The nutrient availability of dry matter, organic matter, crude protein and calcium for experiment group 2 and 3 (laying hens of 36 weeks old) raised 6.15% (P<0.05) and 4.10% (P<0.05), 6.36% (P<0.05) and 6.60% (P<0.05), 2.04% (P<0.05) and 3.21% (P<0.05), 3.84% (P<0.05)and 7.08% (P<0.05) respectively more than control group 1; the egg weight raised 1.32% (P<0.05)and 2.46% (P<0.05). Figures above clearly demonstrate that β-mannanase helps to advance the production performance and apparent nutrient availability of laying hens.

Key words: β-mannanase; laying hens; egg weight; egg production rate; apparent nutrient availability

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