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| 犬采食高钙日粮对钙磷肠吸收影响的研究 | |
| 引用本文： | 刘源,安星兰,王志红,尚世臣,李增庆,李玉,呙于明.犬采食高钙日粮对钙磷肠吸收影响的研究[J].实验动物科学,2003,20(4):19-22. |
| 作者姓名： | 刘源 安星兰 王志红 尚世臣 李增庆 李玉 呙于明 |
| 作者单位： | 1. 军事医学科学院实验动物中心,北京,100071 2. 正大(中国)投资有限公司,北京,100005 3. 中国农业大学动物科技学院,北京,100094 |
| 摘 要： | 目的 研究日粮高钙含量时 ,实验比格犬对钙磷肠吸收的影响。方法 消化试验。结果 当日粮含钙量从1 2 %提高到 2 4 %时 ,粪钙排泻量明显增加 (P <0 0 5 ) ,钙表观消化率逐渐降低 ,肠钙吸收量增加。随日粮钙含量提高 ,粪磷排泻量明显增加 (P <0 0 5 ) ,磷表观消化率和肠磷吸收量明显下降 (P <0 0 5 )。结论 犬主要通过改变肠钙排泄量来调节机体对钙的吸收 ,此外 ,高钙抑制消化道对磷的吸收 |
| 关 键 词： | 犬 高钙 钙磷吸收 |
| 文章编号： | 1006-6179(2003)04-0019-04 |
| 收稿时间： | 2003-12-25 |
| 修稿时间： | 2003年5月4日 |
Study of the Effect of High Dietary Levels of Calcium on Intestinal Absorption for Calcium and Phosphorous by Growing Dogs |
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| LIU Yuan,AN Xing_lan,WANG Zhi_hong,SHANG Shi_chen,LI Zeng_qing,LI Yu,GUO Yu_ming.Study of the Effect of High Dietary Levels of Calcium on Intestinal Absorption for Calcium and Phosphorous by Growing Dogs[J].Shiyan Dongwu Kexue,2003,20(4):19-22. | |
| Authors: | LIU Yuan AN Xing_lan WANG Zhi_hong SHANG Shi_chen LI Zeng_qing LI Yu GUO Yu_ming |
| Abstract: | Objective\ To study the intestinal absorption for calcium and phosphorous in high dietary levels of calcium by growing laboratory beagal dogs.Methods\ Digestive test was employed.Results\ Calcium excretion in feces improved obviously,Apparent calcium degistibility gradually decreased and daily intestinal absorption for calcium increased when dietary calcium level increased from 1.2% to 2.4%.Phosphorous excretion in feces improved obviously and Apparent phosphorous degistibility and daily intestinal absorption for phosphorous decreased significantly.Conclusions\ Dogs have the ability of regulating intestinal absorption for calcium by changing calcium excretion in feces.High calcium consuption reduce the intestinal absorption for phosphorous |
| Keywords: | Dogs High dietary calcium level Calcium and phosphorous absorption |
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