动物营养学报 >

2016 , Vol. 28 >Issue 8: 2542 - 2550

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.08.026

研究简报 Short communications

生长猪基础饲粮组成对磷酸氢钙和磷酸二氢钙中磷的全肠道真消化率的影响

  • 刘正群 ,
  • 张祖翔 ,
  • 陈亮 ,
  • 刘静波 ,
  • 张宏福
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  • 1. 中国农业科学院北京畜牧兽医研究所, 动物营养学国家重点实验室, 北京 100193;
    2. 西南科技大学生命科学与工程学院, 绵阳 621010

收稿日期: 2016-02-29

  网络出版日期: 2016-08-17

基金资助

国家科技支撑计划项目（2012BDA39B01，2013BAD21B02-01）；中国农业科学院科技创新工程（ASTIP-IAS07）

收起

Effects of Basal Diet Composition on True Total Tract Digestibility of Phosphorus in Dicalcium Phosphate and Monocalcium Phosphate for Growing Pigs

  • LIU Zhengqun ,
  • ZHANG Zuxiang ,
  • CHEN Liang ,
  • LIU Jingbo ,
  • ZHANG Hongfu
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  • 1. State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

Received date: 2016-02-29

  Online published: 2016-08-17

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摘要

本试验旨在研究生长猪基础饲粮组成对磷酸氢钙（DCP）和磷酸二氢钙（MCP）中磷的全肠道真消化率（TTTD）的影响。试验1选用10头平均体重为（30.4±1.8）kg的生长猪，按照10×8不完全拉丁方设计，分别饲喂含有5个DCP添加水平的玉米-豆粕型和含有5个DCP添加水平的小麦-豆粕型饲粮，进行8期消化试验；试验2选用10头平均体重为（30.9±1.5）kg的生长猪，按照10×8不完全拉丁方设计，分别饲喂含有5个MCP添加水平的玉米-豆粕型和含有5个MCP添加水平的小麦-豆粕型饲粮，进行8期消化试验。每期消化试验包括5 d的饲粮适应期和2 d的粪便收集期。结果表明：1）玉米-豆粕型饲粮的总粪磷排泄量极显著高于小麦-豆粕型饲粮（P<0.01），小麦-豆粕型饲粮的全肠道可消化磷含量和磷的表观全肠道消化率（ATTD）极显著高于玉米-豆粕型饲粮（P<0.01）。饲粮添加DCP和MCP线性增加总粪磷排泄量、全肠道可消化磷含量及磷的ATTD（P<0.01）。2）通过使用线性回归法，测得生长猪采食玉米-豆粕型和小麦-豆粕型饲粮对DCP中磷的TTTD分别为82.33%和82.88%，生长猪采食玉米-豆粕型和小麦-豆粕型饲粮对MCP中磷的TTTD分别为85.88%和84.62%。由此可见，生长猪基础饲粮组成对DCP和MCP中磷的TTTD无显著影响。

关键词： 磷; 基础饲粮; 生长猪; 全肠道真消化率; 磷酸氢钙; 磷酸二氢钙

本文引用格式

刘正群 , 张祖翔 , 陈亮 , 刘静波 , 张宏福 . 生长猪基础饲粮组成对磷酸氢钙和磷酸二氢钙中磷的全肠道真消化率的影响[J]. 动物营养学报, 2016 , 28(8) : 2542 -2550 . DOI: 10.3969/j.issn.1006-267x.2016.08.026

Abstract

Two experiments were conducted to investigate the effects of basal diet composition on the determination of true total tract digestibility (TTTD) of phosphorus (P) in dicalcium phosphate (DCP) and monocalcium phosphate (MCP) for growing pigs. In experiment 1, ten growing pigs with (30.4±1.8) kg average body weight (BW) were fed 5 DCP supplemental levels of corn soybean meal (CSBM) diets and 5 DCP supplemental levels of wheat soybean meal (WSBM) diets in a 10×8 incomplete Latin square design. In experiment 2, ten growing pigs with (30.9±1.5) kg average BW were fed 5 MCP supplemental levels of CSBM diets and 5 MCP supplemental levels of WSBM diets in a 10×8 incomplete Latin square design. Each experiment contained eight digestion periods and each period lasted for 7 days (5 days for adaptation and 2 days for fecal sample collection). The results showed as follows:1) total tract P output in the CSBM diets was significant higher than that in the WSBM diets (P<0.01), while the total tract digestible P content and apparent total tract digestibility (ATTD) of P in the CSBM diets were higher than those in the WSBM diets (P<0.01). The total tract P output, total tract digestible P content and ATTD of P linearly increased as P from DCP or MCP added to the diet (P<0.01). 2) By using the linear regression method, the estimated true total tract digestibility (TTTD) of P in DCP for pigs fed CSBM and WSBM diet to be 82.33% and 82.88%, respectively. The TTTD of P in MCP for pigs fed CSBM and WSBM diet to be 85.88% and 84.62%, respectively. In conclusion, the TTTD of P in DCP or MCP for growing pigs is not affected by basal diet composition.

Key words： phosphorus; basal diet; growing pigs; true total tract digestibility; dicalcium phosphate; monocalcium phosphate

参考文献

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