摘要
用猪体外两步酶解法测定了不同物候期刈割的多花黑麦草的干物质和能量消化率,并采用全收粪法对上述结果作了验证;最后用18头生长肥育猪作了不同比例黑麦草粉代替麦麸的饲养试验。结果表明:随黑麦草生长期延长,纤维含量上升,蛋白含量和干物质、能量消化率下降,适宜的刈割期应在抽穗至盛花期之间。草粉的消化能随生长期延长而下降。营养拔节期、抽穗期和盛花期分别为1.6,1.3和1.2兆卡/公斤。据此建议,黑麦草粉在生长肥育猪饲粮中的用量以前期10%,后期15%为宜。
Dry matter and gross energy in vitro digestabilities of Lolium.multiflorum Lam.at diferent growth stages were determined and compared with in vivo.A feeding trial was conductd to testify the feeding values of L.multiflorun for growing-finishing pigs.The results indicated that for the grass,the longer growth lasted, the higher content of its crude fibre was and the lower digestabilities of its DM and GE.Digestible energy of the grass for pigs was 1600,1300 and 1200 Kcal/KG in heading and full blooming stages.It was suggested that it was ideal to have 10% grass meal in their diet for growing pigs,but for finishing pigs,15% was best.
出处
《草业科学》
CAS
CSCD
北大核心
1991年第6期22-24,35,共4页
Pratacultural Science
