日粮蛋白质水平对梅花鹿营养物质消化代谢的影响  

THE EFFECT OF DIETARY PROTEIN LEVEL ON NUTRIENT DIGESTION AND METABOLISM IN SIKA DEER

作　　者：高秀华[1] 李光玉[1] 郜玉钢[1] 王晓伟[1] 王凯英[1] 

机构地区：[1]中国农业科学院特产研究所,吉林吉林132109

出　　处：《动物营养学报》2001年第3期52-55,共4页CHINESE JOURNAL OF ANIMAL NUTRITION

摘　　要：试验选择4头三锯梅花鹿 ,按4×4拉丁方设计 ,进行了氮平衡试验。研究了日粮蛋白质水平对氮消化与沉积规律及血液某些相关指标的影响。结果表明 ,随着日粮蛋白质水平的提高 ,氮的进食量显著增加 ;氮的表观消化率、氮沉积量也显著增加。随着食入氮量的提高 ,血清尿素氮浓度直线上升。In a 4×4 Latin square experiment design,nitrogen balance trials were conducted.The results showed as follows:(1)Increasing dietary protein level(8%,12%,16%,20%) resulted in significantly increased N intake and apparent N digestibility .The relationship between N intake and N digestibility was:N digestibility(%)=42.164+0.5144N intake(g/d),(r=0.9566,n=16);(2)As dietary protein level increased,the urinary N excretion increased significantly(P<0.01),and the N deposition also increased.The linear relationship between N intake and N deposition was significant:N deposition(g/d)=1.965+0.1998 N intake(g/d),(r=0.9169,n=16);(3)Dietary protein level had significant effects on serum urea N(P<0.01).As N intake increased, concentrations of serum urea N increased with a positive linear regression:SUN(mg/100ml)=0.343 N intake(g/d)-2.044,(r=0.9986,n=16).

关 键 词：梅花鹿 蛋白质 消化 代谢 营养物质 饲料蛋白质 

分 类 号：S825.5[农业科学—畜牧学]