动物营养学报 >

2014 , Vol. 26 >Issue 7: 1746 - 1752

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.07.005

猪营养 Swine Nutrition

高温条件下降低饲粮粗蛋白质水平和添加复合酶制剂对肥育猪生长性能和氮、磷代谢的影响

  • 蔡青和 ,
  • 陈远庆 ,
  • XI Lin ,
  • 汪以真 ,
  • 王国水 ,
  • 毛慧敏 ,
  • 郭宝海 ,
  • 王利通 ,
  • 计成
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  • 1. 浙江大学动物科学学院, 杭州 310058;
    2. 中国农业大学动物科技学院, 北京 100193;
    3. 美国北卡罗莱纳州立大学, 罗利 27695;
    4. 天蓬集团有限公司, 江山 324111

收稿日期: 2014-02-28

  网络出版日期: 2014-07-01

基金资助

浙江省博士后基金（3551）；浙江省引进海外高层次人才“千人计划”

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Effects of Reducing Dietary Crude Protein Level and Supplement with Compound Enzymes on Growth Performance, Nitrogen and Phosphorus Metabolism of Finishing Pigs under High Temperature Conditions

  • CAI Qinghe ,
  • CHEN Yuanqing ,
  • XI Lin ,
  • WANG Yizhen ,
  • WANG Guoshui ,
  • MAO Huimin ,
  • GUO Baohai ,
  • WANG Litong ,
  • JI Cheng
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  • 1. College of Animal Science, Zhejiang University, Hangzhou 310058, China;
    2. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    3. North Carolina State University, Raleigh 27695, USA;
    4. Tianpeng Group Co., Ltd., Jiangshan 324111, China

Received date: 2014-02-28

  Online published: 2014-07-01

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摘要

本试验旨在研究高温条件下降低饲粮粗蛋白质水平和添加复合酶制剂对肥育猪生长性能和氮、磷代谢的影响。试验选择平均体重（74.09±2.72）kg的三元杂交（杜×大×长）肥育猪180头，根据体重和性别分为3个组，每组5个重复。对照组饲喂正常粗蛋白质水平（16.53%）饲粮，试验Ⅰ组饲喂低粗蛋白质水平（15.14%）饲粮，试验Ⅱ组饲喂低粗蛋白质水平（15.14%）饲粮+0.02%的复合酶制剂，对照组和试验组通过补充合成氨基酸方式保持氨基酸水平不变。试验期为45d。结果表明：与对照组相比，1）试验Ⅰ和Ⅱ组平均日增重、料重比和氮、磷的表观消化率无显著差异（P>0.05）；2）试验Ⅰ和Ⅱ组氮的排放量极显著降低（P<0.01），试验Ⅱ组磷的排放量显著降低（P<0.05）；3）试验Ⅰ和Ⅱ组血清尿素氮含量显著降低（P<0.05）。高温环境下，适度降低饲粮粗蛋白质水平并添加复合酶制剂并不影响肥育猪生长性能，但显著降低了氮、磷排放量及血清尿素氮含量。

关键词： 高温; 低粗蛋白质水平饲粮; 肥育猪; 生长性能; 氮; 磷; 尿素氮

本文引用格式

蔡青和 , 陈远庆 , XI Lin , 汪以真 , 王国水 , 毛慧敏 , 郭宝海 , 王利通 , 计成 . 高温条件下降低饲粮粗蛋白质水平和添加复合酶制剂对肥育猪生长性能和氮、磷代谢的影响[J]. 动物营养学报, 2014 , 26(7) : 1746 -1752 . DOI: 10.3969/j.issn.1006-267x.2014.07.005

Abstract

This experiment was conducted to determine the effects of reducing dietary crude protein level and supplement with compound enzymes on growth performance, nitrogen and phosphorus metabolism of finishing pigs under high temperature conditions. One hundred and eighty crossed finishing pigs (Duroc×Landrace×Large White) with an average body weight of (74.09±2.72) kg were randomly assigned to 3 groups (5 replicates per group and 12 pigs per replicate) based on their weight and sex. Pigs in each group were randomly fed one of the three diets: regular crude protein level (16.53%) diet (control group), low crude protein level (15.14%) diet (experimental group Ⅰ), and low crude protein level diet (15.14%)+0.02% compound enzymes (experimental group Ⅱ), respectively. The experiment lasted for 45 d. The results showed as follows: compared with control group, 1) there were no significant differences in average daily grain, feed/gain, and apparent digestibility of nitrogen and phosphorus in experimental groups Ⅰ and Ⅱ (P>0.05); 2) the nitrogen excretion amount in experimental groups Ⅰ and Ⅱ was significantly decreased (P<0.05), and the phosphorus excretion amount in experimental group Ⅱ was significantly decreased (P<0.05); 3) experimental groups Ⅰ and Ⅱ had lower serum urea nitrogen content (P<0.05). These results indicate that low crude protein level diets supplemented with the compound enzymes under high temperature conditions have no significant effect on the growth performance of pigs, while significantly decrease the serum urea nitrogen content and the nitrogen and phosphorus excretion amount.

Key words： high temperature; low crude protein level diets; finishing pigs; growth performance; nitrogen; phosphorus; urea nitrogen

参考文献

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