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| 两种木聚糖酶对黄羽肉鸡生长性能和养分代谢率的影响 | |
| 引用本文： | 王雄,陈清华,丁增辉,王兴吉.两种木聚糖酶对黄羽肉鸡生长性能和养分代谢率的影响[J].中国畜牧兽医,2016,43(7):1755-1760. |
| 作者姓名： | 王雄 陈清华 丁增辉 王兴吉 |
| 作者单位： | 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 |
| 基金项目： | "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） |
| 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 |
| 收稿时间： | 2015-12-29 |
Effects of Two Xylanases on Growth Performance and Nutrient Metabolizability of Yellow-feather Broilers |
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| WANG Xiong,CHEN Qing-hua,DING Zeng-hui,WANG Xing-ji.Effects of Two Xylanases on Growth Performance and Nutrient Metabolizability of Yellow-feather Broilers[J].China Animal Husbandry & Veterinary Medicine,2016,43(7):1755-1760. | |
| Authors: | WANG Xiong CHEN Qing-hua DING Zeng-hui WANG Xing-ji |
| Institution: | 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; 2. Shandong Lonct Enaymes Co., Ltd., Linyi 276400, China |
| 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. |
| Keywords: | xylanase Yellow-feather broiler growth performance nutrient metabolizability |
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