猪氨基酸营养研究进展.ppt

第四讲猪氨基酸营养研究进展猪的氨基酸营养需要新型氨基酸产品营养价值评价氨基酸与肌肉发育氨基酸与肠道健康日粮蛋白质水平与仔猪肠道健康功能性氨基酸与猪的繁殖一、猪的氨基酸营养需要猪氨基酸需要量的研究方法—先求限制猪生长的日粮赖氨酸水平,Zhang等,LivestockSci.,2012用ADG表达的生长猪低蛋白质日粮中色氨酸与赖氨酸之比,Zhang等,LivestockSci.,2012用饲料/增重表达的生长猪低蛋白质日粮中色氨酸与赖氨酸之比,Zhang等,LivestockSci.,2012用血浆尿素氮浓度表达的生长猪低蛋白质日粮中色氨酸与赖氨酸之比,Zhang等,LivestockSci.,201243-70kg阉公猪赖氨酸(g)/ME(Mcal)Lys/,%,%,kcal/kg358135803580358035793579ADG,g/d913970992966963943ADFI,g/d206920872111204320632005Gain/Feed,g/,,,g/,2008,1166头,JAnimSci69-93kg阉公猪赖氨酸(g)/ME(Mcal)Lys/,%,%,kcal/kg359635963596359635963596ADG,g/d818828893902916946ADFI,g/d227823022312235222872350Gain/Feed,g/,,,g/,2008,1166头,JAnimSci102-120kg阉公猪赖氨酸(g)/ME(Mcal)Lys/,%,%,kcal/kg361636153615361436143614ADG,g/d818818857865868877ADFI,g/d261626132644266125982606Gain/Feed,g/,,,g/,2008,1166头,JAnimSci35-60kg小母猪赖氨酸(g)/ME(Mcal)Lys/,%,%,kcal/kg358035803580357835783578ADG,g/d895910930907905890ADFI,g/d194819241944190718991897Gain/Feed,g/,,,g/,2008,1166头,JAnimSci