精料来源对肉羊营养物质消化率的影响及代谢能预测模型的建立

doi:10.11843/j.issn.0366-6964.2016.11.013

畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (11): 2257-2265.doi: 10.11843/j.issn.0366-6964.2016.11.013

精料来源对肉羊营养物质消化率的影响及代谢能预测模型的建立

赵江波^1,2 ，魏时来²，赵明明¹，马涛¹ ，肖怡¹ ，丁静美¹ ，李岚捷¹，冯文晓¹ ，贾鹏¹，刁其玉^1*

（1. 中国农业科学院饲料研究所，农业部饲料生物技术重点实验室，北京 100081；2.甘肃农业大学动物科学技术学院，兰州 730070）

收稿日期:2016-02-01 出版日期:2016-11-23 发布日期:2016-11-23
通讯作者: 刁其玉，男，研究员，博士生导师， E-mail：diaoqiyu@caas.cn
作者简介:赵江波(1990-)，男，河北邢台人，硕士生，主要从事动物营养与饲料科学研究，E-mail：zhaojiangbo0722@163.com
基金资助:
国家肉羊产业技术体系（CARS-39）；国家“十二五”支撑计划“肉羊健康养殖模式构建与示范”（2011BAZ01734）

Effect of Concentrate Source on Nutrient Digestibility and Establishment of Prediction Model of Metabolizable Energy in Mutton Sheep

ZHAO Jiang-bo ^1,2，WEI Shi-lai ²，ZHAO Ming-ming¹，MA Tao¹，XIAO Yi ¹，DING Jing-mei¹，LI Lan-jie¹，FENG Wen-xiao¹，JIA Peng¹，DIAO Qi-yu^1*

（1.Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China； 2.College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China）

Received:2016-02-01 Online:2016-11-23 Published:2016-11-23

摘要/Abstract

摘要：

本试验旨在通过概略养分或可消化养分建立肉用绵羊配合饲料代谢能预测模型。选取66只18月龄体重为(49.6±1.3) kg的杜泊×小尾寒羊F₁代杂交去势肉羊，采用完全随机试验设计。共11个处理，包括1个基础饲粮组和10个试验饲粮组。分别测定10种试验饲粮的概略养分和可消化养分；代谢试验测定10种试验饲粮的消化能（DE）和代谢能（ME）；线性回归方法建立代谢能与概略养分和可消化养分的预测模型。结果表明，饲粮的OMD和GED与CP、NDF、ADF、GE相关极显著（P＜0.01）；CPD与CP、NDF、ADF相关极显著（P＜0.01），与OM相关显著（P＜0.05）；NDFD和ADFD与GE和CP相关极显著（P＜0.01），NDFD与OM和NDF相关显著（P＜0.05）。建立的饲料概略养分代谢能预测模型：ME（MJ•kg^-1）=38.881－19.516ADF（%）－28.672OM（%）（R²=0.640，n=60，P<0.01）；可消化养分代谢能预测模型：ME（MJ•kg^-1）=1.613DE（MJ•kg^-1）－14.705DOM（%）+2.743DNDF（%）－3.179（R²=0.879，n=60，P<0.01）。综上表明，饲料概略养分和可消化养分与代谢能之间相关性显著，可以通过概略养分和可消化养分对饲料的代谢能进行有效的预测。

Abstract:

The experiment was conducted to evaluate the feasibility for establishing the prediction model of the dietary metabolizable energy (ME) of compound feeds of sheep by using proximate anlaysis measurements or digestible nutrients. Sixty-six castrated Dorper × Thin-tailed Han crossbred rams ((49.6±1.3) kg of body weight) were randomly assigned into 11 groups(one basal diet group and 10 experimental diet groups). Digestibility trials were conducted to measure and calculate individual digestible energy (DE) and ME, establishing the metabolic energy and proximate nutrients and digestible nutrient prediction model with the linear regression method. The results indicated that: the OM and GE digestibility of diets were significantly related to CP, NDF, ADF and GE (P<0.01); CP digestibility was significantly related to CP, NDF and ADF (P<0.01), and significantly related to OM (P<0.05); NDF and ADF digestibility were significantly related to GE and CP (P<0.01). NDF digestibility was significantly related to OM and NDF (P<0.05). The prediction equation of dietary ME using proximate analysis measurements was ME (MJ•kg^-1)=38.881 － 19.516ADF (%)－ 28.672OM (%) (R² = 0.640, n=60, P<0.01); The prediction equation of dietary ME using digestible nutrients was ME (MJ•kg^-1) = 1.613DE (MJ•kg^-1)－14.705DOM (%) + 2.743DNDF (%)－ 3.179 (R²=0.879, n=60, P<0.01). In conclusion, there were significant correlations between proximate nutrients, digestible nutrients and ME. The prediction model of proximate nutrients and digestible nutrients can be used in routine analysis.

中图分类号:

S826
S816.4

赵江波,魏时来,赵明明，马涛,肖怡,丁静美,李岚捷,冯文晓,贾鹏,刁其玉. 精料来源对肉羊营养物质消化率的影响及代谢能预测模型的建立[J]. 畜牧兽医学报, 2016, 47(11): 2257-2265.

ZHAO Jiang-bo，WEI Shi-lai，ZHAO Ming-ming，MA Tao，XIAO Yi，DING Jing-mei，LI Lan-jie，FENG Wen-xiao，JIA Peng，DIAO Qi-yu. Effect of Concentrate Source on Nutrient Digestibility and Establishment of Prediction Model of Metabolizable Energy in Mutton Sheep[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2016, 47(11): 2257-2265.

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精料来源对肉羊营养物质消化率的影响及代谢能预测模型的建立

Effect of Concentrate Source on Nutrient Digestibility and Establishment of Prediction Model of Metabolizable Energy in Mutton Sheep

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