杂交狼尾草营养价值评价研究  

Study on nutritional value of pennisetum

作　　者：孙亚波[1] 边革[1] 

机构地区：[1]辽宁省畜牧科学研究院,辽宁辽阳111000

出　　处：《现代畜牧兽医》2013年第9期53-55,共3页Modern Journal of Animal Husbandry and Veterinary Medicine

摘　　要：本研究应用概略分析法和CNCPS体系对接近成熟期的杂交狼尾草进行了营养评价,结果表明,此时收获的杂交狼尾草在碳水化合物营养方面:木质素比例(LIG/NDF为11.95)较高,不可利用纤维-CC(%CHO)-高于羊草、苜蓿、各类秸秆和灌木,而可消化的纤维-CB2(%CHO)-却较低。在蛋白质物营养方面:杂交狼尾草的粗蛋白达到9.77%,可溶性蛋白(SCP)中主要是非蛋白氮(NPN)、快速降解蛋白(PBl)和慢速降解蛋白(PB3),均高于羊草和苜蓿,结合蛋白(PC)低于羊草、苜蓿、秸秆和灌木类。以上结果表明,接近成熟期的杂交狼尾草蛋白质营养较好,但碳水化合物的木质化程度高,可消化利用性较低。The study was conducted to analysis the nutritional value of pennisetum using general nutrient analysis method and CNCPS system. The result showed that lig- nification in carbohydrate was pervasive, and LIG/NDF was II.95 meaning lignin was more; CC（%CHO）was 33.56% which was higher than Chinese wildrye, alfalfa, straw and shrubs; digestible component -CB2- was lower than Chinese wildrye and alfalfa. And in protein nutrients, CP was 9.77%; NPN was the main component in SCP; PBI and PB3 of pennisetum was more than Chinese wildrye and alfalfa meanwhile PC was less than Chinese wildrye, alfalfa, straw and shrubs. In conclusion the protein nutrients were better and carbohydrate nutrients were indigestible in pennisetum harvested near to mature time.

关 键 词：杂交狼尾草 营养价值 CNCPS 

分 类 号：S816.11[农业科学—饲料科学]