低磷日粮对生长猪生产性能、养分消化率和经济效益的影响  

Effect of Low Phospherus Diet on Production Performance,Nutrition Digestibility and Economic Benefits of Growing Pigs

作　　者：吴信[1] 李俊波 印遇龙[1] 刘建高[1] 黄瑞林[1] 

机构地区：[1]中国科学院亚热带农业生态研究所 [2]湖南唐人神股份有限公司,湖南株洲412002

出　　处：《家畜生态学报》2007年第4期9-12,共4页Journal of Domestic Animal Ecology

基　　金：中国科学院知识创新工程重要方向项目(KSCX2-SW-323);国家973项目(2004CB117502);国家自然科学基金项目(30528006;30371038);中国科学院海外杰出学者基金(2005-1-7;2005-1-4)资助

摘　　要：选用288头体重26kg左右、体质健康的杜×长×大三元杂交生长猪,随机分为两组,每组三个重复,以玉米-豆粕-小麦型为基础日粮,对照组日粮参照NRC(1998)标准设计,试验组日粮添加0.33%的磷酸氢钙,且日粮的有效磷(AP)水平为0.205%。试验期30d。研究了低磷日粮对生长猪的生长性能、养分利用及其对环境的影响。结果表明:在不影响猪磷营养需要的条件下,能有效的改善猪排泄物中磷对环境的污染,具有极大的经济和生态效益。288 barrows, average body initial weight about 26kg, were fed two diets individually. Dical-cium phosphate was used as the most of inorganic phosphorus source in the soybean meal diets, and supplemental level was 0.33% in experimental group, levels of AP 0. 205%. The experimental period is 31d. By P equilibrium and their outputs, the digestibility of P of pigs and the effects on environment were studied. The results showed that the fecal P outputs reduced significantly. There was no significant difference in nutrition digestibility （ P 〉 0.05 ） when the level of P in diet changed, but the values indicted a detracted trend. All of the experimental values from the balance P in diets suggested that it could reduce the pollution of P in swine production on environment and reduce the cost as well.

关 键 词：磷酸氢钙 生长猪 真消化率 环境 

分 类 号：S811.5[农业科学—畜牧学]