动物营养学报2016，Vol.28Issue(8)：2542-2550,9.DOI:10.3969/j.issn.1006-267x.2016.08.026
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
Effects of Basal Diet Composition on True Total Tract Digestibility of Phosphorus in Dicalcium Phosphate and Monocalcium Phosphate for Growing Pigs
摘要
Abstract
Two experiments were conducted to investigate the effects of basal diet composition on the determi⁃nation of true total tract digestibility ( TTTD) of phosphorus ( P) in dicalcium phosphate ( DCP) and monocal⁃cium 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 sup⁃plemental levels of wheat soybean meal ( WSBM) diets in a 10 × 8 incomplete Latin square design. In experi⁃ment 2, ten growing pigs with (30.9±1.5) kg average BW were fed 5 MCP supplemental levels of CSBM di⁃ets 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 conclu⁃sion, the TTTD of P in DCP or MCP for growing pigs is not affected by basal diet composition.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Key words
phosphorus/basal diet/growing pigs/true total tract digestibility/dicalcium phosphate/mono-calcium phosphate分类
农业科技引用本文复制引用
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):2542-2550,9.基金项目
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 （）
