《中国畜牧兽医》---唯一指定的官方网站 ›› 2016, Vol. 43 ›› Issue (7): 1755-1760.doi: 10.16431/j.cnki.1671-7236.2016.07.015

• 动物营养与饲料科学 • 上一篇    下一篇

两种木聚糖酶对黄羽肉鸡生长性能和养分代谢率的影响

王雄1, 陈清华1, 丁增辉1, 王兴吉2   

  1. 1. 湖南农业大学动物科学技术学院, 长沙 410128;
    2. 山东隆科特酶制剂有限公司, 临沂 276400
  • 收稿日期:2015-12-29 出版日期:2016-07-20 发布日期:2016-07-22
  • 通讯作者: 陈清华 E-mail:chqh314@163.com
  • 作者简介:王雄(1991-),男,湖南长沙人,硕士生,研究方向:饲料资源开发与利用,E-mail:188735129@qq.com
  • 基金资助:

    "十二五"农村领域国家科技计划课题(2013BAD10B00);湖南农业大学技术合作项目(0115055)

Effects of Two Xylanases on Growth Performance and Nutrient Metabolizability of Yellow-feather Broilers

WANG Xiong1, CHEN Qing-hua1, DING Zeng-hui1, WANG Xing-ji2   

  1. 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Shandong Lonct Enaymes Co., Ltd., Linyi 276400, China
  • Received:2015-12-29 Online:2016-07-20 Published:2016-07-22

摘要:

试验旨在探讨不同来源木聚糖酶对黄羽肉鸡生长性能的影响。将1日龄健康黄羽肉鸡540羽,随机分成3组,每组6个重复,每重复30羽,试验期42 d。对照组饲喂小麦-玉米-豆粕型基础日粮,试验A、B组分别饲喂基础日粮中添加200 g/t木霉产木聚糖酶和200 g/t细菌产木聚糖酶的试验日粮,木聚糖酶酶活均为30 000 IU/g。结果表明,与对照组相比,试验A、B组的平均日增重和粗脂肪、粗纤维、钙、磷的表观代谢率及日粮表观代谢能均显著提高(P < 0.05),料重比显著降低(P < 0.05),粗蛋白质表观代谢率分别提高了5.90%(P < 0.05)和3.54%(P > 0.05)。试验A、B组之间各测定指标没有显著差异(P > 0.05) 。上述结果表明日粮中添加200 g/t木霉产木聚糖酶或细菌产木聚糖酶均能提高养分代谢率,改善肉鸡生长性能,木霉产木聚糖酶的效果稍好于细菌产木聚糖酶。

关键词: 木聚糖酶; 黄羽肉鸡; 生长性能; 养分代谢率

Abstract:

The experiment was aimed to investigate the effects of xylanases from different sources on growth performance and nutrition metabolizability of Yellow-feather broilers.540 of healthy 1-day-old Yellow-feather broilers were randomly divided into three groups with 6 replicates per group and 30 broilers per replicate,and the trial period was 42 d.The control group was fed a wheat-corn-soybean meal diet,and groups A and B fed the basal diet supplemented with 200 g/t Trichoderma xylanase (30 000 IU/g) and bacterial xylanase (30 000 IU/g), respectively.The results showed that,compared with the control group,the average daily gain,apparent metabolizability of crude fat,crude fiber,calcium and phosphorus,and apparent metabolizable energy were significantly higher (P < 0.05),the F/G were significantly decreased (P < 0.05) in both groups A and B,their apparent metabolizabilities of crude protein increased by 5.90% (P < 0.05) and 3.54% (P > 0.05), respectively.There were no significant differences for all the determined indexes between groups A and B (P > 0.05).The supplementation of Trichoderma xylanase or bacterial xylanase at 200 g/t could improve nutrient metabolizability,thus improve growth performance of broilers,while the effects of Trichoderma xylanase were better than that of bacterial xylanase.

Key words: xylanase; Yellow-feather broiler; growth performance; nutrient metabolizability

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