饲粮磷水平对育肥猪磷的标准回肠及全肠道消化率评定的影响

刘正群; 吕帅兵; 解竞静; 张祖翔; 刘静波; 张宏福

doi:10.3969/j.issn.1006-267x.2016.05.011

动物营养学报 >

2016 , Vol. 28 >Issue 5: 1361 - 1368

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.05.011

猪营养 Swine Nutrition

饲粮磷水平对育肥猪磷的标准回肠及全肠道消化率评定的影响

刘正群 ,
吕帅兵 ,
解竞静 ,
张祖翔 ,
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: 2015-11-29

网络出版日期: 2016-05-24

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)

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Effects of Dietary Phosphorus Level on Determination of Standardized Ileal and Total Tract Digestibility of Phosphorus for Fattening Pigs

LIU Zhengqun ,
LYU Shuaibing ,
XIE Jingjing ,
ZHANG Zuxiang ,
LIU Jingbo ,
ZHANG Hongfu

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1. State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China;
2. Inititution of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

Received date: 2015-11-29

Online published: 2016-05-24

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摘要

本试验旨在研究饲粮磷水平对育肥猪磷的标准回肠消化率(SID)及标准全肠道消化率(STTD)评定的影响。选用18头平均体重为(73.8±3.3) kg、安装了简单T型瘘管的育肥猪,采用9×4不完全拉丁方设计,采用9种饲粮,进行4期试验。9种饲粮中无磷饲粮用于测定基础内源磷排泄量(EPL),6种半纯合饲粮和2种混合饲粮用于测定磷的消化率。以三氧化二铬为指示剂测定EPL和磷的消化率。结果表明:1)饲粮类型极显著影响育肥猪回肠磷排泄量、磷的表观回肠消化率(AID)及SID(P<0.01);饲粮磷水平极显著影响育肥猪回肠磷排泄量(P<0.01),但对磷的AID和SID影响不显著(P>0.05);饲粮类型与饲粮磷水平的互作效应极显著影响育肥猪回肠磷排泄量、磷的AID及SID(P<0.01)。2)饲粮类型极显著影响育肥猪全肠道磷排泄量、磷的表观全肠道消化率(ATTD)和STTD(P<0.01);饲粮磷水平极显著影响育肥猪全肠道磷排泄量、磷的ATTD(P<0.01),但对磷的STTD的影响不显著(P>0.05);饲粮类型及饲粮磷水平的互作效应显著影响育肥猪的全肠道磷排泄量(P<0.01)和磷的ATTD(P<0.05),但对磷的STTD无显著影响(P>0.05)。由此可见,在本试验条件下,饲粮磷水平对育肥猪磷的AID、SID及STTD评定无显著影响,但饲粮磷水平显著影响育肥猪磷的ATTD评定。因此,在使用STTD评定猪饲料原料中磷的利用效率时可配制具有不同磷水平的试验饲粮。

关键词： 育肥猪; 磷; 表观消化率; 标准消化率

本文引用格式

刘正群 , 吕帅兵 , 解竞静 , 张祖翔 , 刘静波 , 张宏福 . 饲粮磷水平对育肥猪磷的标准回肠及全肠道消化率评定的影响[J]. 动物营养学报, 2016 , 28(5) : 1361 -1368 . DOI: 10.3969/j.issn.1006-267x.2016.05.011

Abstract

The present study was conducted to investigate the effects of dietary phosphorus (P) level on the determination of standardized ileal digestibility (SID) and standardized total tract digestibility (STTD) of P for fattening pigs. Eighteen fattening pigs with the average body weight of (73.8±3.3) kg were surgically fitted with simple T-cannulas at the distal ileum. According to an incomplete Latin square design duplicated 9×4, nine diets and four periods were used in this experiment. The 9 experimental diets consisted of one P-free diet (PFD), six semi-purified diets and 2 mixed diets. PFD was used to estimate the basal endogenous P losses (EPL), while other diets were used to determine P digestibility. Chromic oxide was included in diets to determine EPL and P digestibility. The results showed as follows:1) dietary type extremely significantly affected ileal P output, apparent ileal digestibility (AID) and SID of P for fattening pigs (P<0.01). Dietary P level extremely significantly affected ileal P output (P<0.01), but had no significant influences on AID and SID of P for fattening pigs (P>0.05). The interaction of dietary type and dietary P level extremely significantly affected ileal P output, AID and SID of P for fattening pigs (P<0.01). 2) Dietary type extremely significantly affected total tract P output, apparent total tract digestibility (ATTD) and STTD of P for fattening pigs (P<0.01). Dietary P level extremely significantly affected total tract output and ATTD of P (P<0.01), but had no significant influence on STTD of P for fattening pigs (P>0.05). The interaction of dietary type and dietary P level significantly affected total tract output (P<0.01) and ATTD of P (P<0.05), but had no significant influence on STTD of P for fattening pigs (P>0.05). In conclusion, under the condition of this experiment, dietary P level has no significant influence on the determination of AID, SID and STTD of P for fattening pigs. However, dietary P level significantly affects the determination of ATTD of P for fattening pigs. Therefore, experimental diets with different dietary P levels can be formulated when STTD is used for determining the efficiency of P in feed ingredients of pigs.

Key words： fattening pigs; phosphorus; apparent digestibility; standardized digestibility

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