摘要
本文研究了日粮有效磷（０～３周龄：０．４５％、０．６０％、０．７５％；３～６周龄：０．４０％、０．５５％、０．７０％）和锰（１００、２００ｐｐｍ）水平对由仔鸡肝脏、肾脏和骨骼的影响。结果表明：日粮有效磷水平从０．４５／０．４０％提高到０．７５／０．７０％时，肾中磷的排出增加。锰水平由１００ｐｐｍ提高到２００ｐｐｍ时，会加强这种排出。日粮锰水平由１００ｐｐｍ提高到２００ｐｐｍ时，肝和肾中锰的沉积量明显升高（Ｐ＜０．０５或０．０１）。在３～６周龄，当日粮有效磷水平为０．５５％时，骨灰率和骨灰磷含量最高（Ｐ＜０．０５或０．０１）。锰由１００ｐｐｍ提高到２００ｐｐｍ时，骨灰锰含量明显增加（Ｐ＜０．０５或０；０１）；日粮有效磷与锰的互作对骨骼断裂强度有较大影响（Ｐ＜０．０５或０．０１）。
A 3×2 factorial arrangement of treatments involving three available phosphorus(APfor 0￣3-week-old:0 .45 0%,0.60%,0.75% and for 3￣6-week-old:0.400%,0.55%,0.70%)and two manganese(Mn:100,200 ppm) levels was used to study the effects of dietaryphosphorus and manganese levels on some parameters of liver,kidney, and bone in broi-Jers.The main results are as follows:The phosphorus excretion from the kidney wasgreatly increased with the increment of dietary AP level from 0.45/0.40% to 0.75/0.70%.This excretion could be raised by the increment of dietary Mn level from 100ppm to 200 ppm.The Mn retention in the liver and kidney was greatly increased withthe increment of dietary Mn level from 100 ppm to 200 Ppm (P<0.05 or 0.01);Thebone ash and its P content were the highest ones when the dietary AP level was 0.55%during 3￣6-week-old tP<0.05 or 0.01) .The interaction between AP and Mn levelsLad great effects on bone breaking strength. It was the highest one at the 0.60/0.55%AP level in the diet when dietary Mn level was 100 PPm, or at the 0.70/0.75% APJevel in the diet when dietary Mn level was 200 ppm.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
1995年第1期7-11,共5页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
关键词
磷
锰
仔鸡
组织
肉用鸡
饲料
Phosphorus (P),Manganese (Mn).Broilers,Tissues
