膨化加工改善柠条饲用营养价值的研究  

Improvement of Nutrient Value of Caragana korshinskii by Expansion Process

作　　者：张雄杰[1,2] 梅灵[2] 达赖[3] 阿茹汗[2] 

机构地区：[1]内蒙古天际绿洲特色生物资源研发中心,内蒙古呼和浩特010019 [2]内蒙古农业大学,内蒙古呼和浩特010018 [3]内蒙古农牧业科学院,内蒙古呼和浩特010031

出　　处：《畜牧与饲料科学》2010年第9期39-41,共3页Animal Husbandry and Feed Science

基　　金：科技部农业科技成果转化基金资助课题(2008GB2A400047)

摘　　要：柠条(Caragana korshinskii)在复壮平茬时收获的枝条,经粉碎加工制成的柠条粉,可作为食草动物的粗饲料。柠条粉饲料含有丰富的营养成分,但质地坚硬、含有单宁等抗营养因子,导致动物采食量少、消化率和利用率低。试验研究了膨化加工处理对不同采收期柠条中单宁、粗蛋白、粗脂肪、无氮浸出物、粗纤维、粗灰分含量的影响。结果表明,试验组柠条中的单宁含量由2.01%～2.96%降低至0.18%～0.27%、粗纤维含量由33.96%～39.12%降低至28.23%～33.95%、无氮浸出物含量由39.42%～42.91%增加至45.33%～48.42%,与对照组相比均达到显著水平。结论:膨化加工可明显改善柠条的营养价值。The branches of Caragana korshinskii harvested at rejuvenation were crushed into powder which can be used as coarse fodder of herbivores. The Caragana powder is very nutritious but hard. And it contains anti-nutritional factors like tannin. These characteristics lead to poor palatability, low intake and low utilization rate in herbivores. The effects of expansion process on contents of tannin, crude protein, crude fat, crude fiber, nitrogen free extract and crude ash in Caragana korshinskii harvested at different times. The tannin content decreased from 2.01%-2.96% to 0.18%-0.27%. The crude fiber content decreased from 33.96%-39.12% to 28.23%-33.95%. The nitrogen free extract content increased from 39.42%-42.91% to 45.33%-48.42%. All differenc, es were at a significant level. Therefore, the expansion process can improve nutrient value of Caragtma korshinskii greatly.

关 键 词：柠条 膨化 单宁 营养价值 

分 类 号：Q949.751.9[生物学—植物学]