摘要
木薯是典型的热带、亚热带作物，具有高生物量的特性，同时其嫩茎叶含有丰富的粗蛋白和脂肪等营养物质，是南方重要的饲料蛋白质来源。文章以4个不同木薯品种为研究对象，对其嫩茎叶进行刈割，测定嫩茎叶产量、干物质含量、粗蛋白、氰化物、粗脂肪和粗纤维等指标，分析品种间的差异并进行主成分的综合评价。结果显示，野生木薯种嫩茎叶产量（0．95kg／株）极显著高于其他品种，干物质含量（22．84％）也显著高于其他品种，但营养品质中粗蛋白和粗脂肪含量显著低于SC9，且氰化物的含量（202～30mg／kg）显著高于其他品种，说明与其他品种相比野生木薯不利于饲料化利用。进一步通过主成分综合评价也表明，第1刈割期野生木薯的F值仅6．5064，极显著低于SC205的F值（26．6042），并根据F值将4个品种饲料化利用评价为SC205〉SC9〉SC5〉野生木薯。
Cassava is a typical tropical and subtropical crop, which have an advantage on high biomass, and these tender stalk and frondage are good staple of crude proteins for feeding stuff. We focus on how to use these staples, and four varieties were subjected to analysis the difference changes and had an analytic evaluation on yields,dry matter content, crude proteins, cyanide content,crude fat and crude fiber. The results showed wild cassava have a high yield（0.95 kg/per plant）, it＇s significant difference than the other varieties, it also have obvious high dry matter（22.84%） and cyanide content （33.38 mg/kg）, while the crude proteins and fat of wild cassava are obvious lower than the others, these are not good to processing feeding stuff, So, the further principal analysis of analytic evaluation was used to evaluate, and we found the F value （6.506 4） of wild cassava is extremely significant lower than SC205 F value （26.602 4） in first clipping, that indicated SC205 cassava is much better to make the feeding stuff than wild cassava, Then we made an order for four varieties as SC205〉SC9〉SC5〉wild based the F value.
出处
《饲料工业》
北大核心
2016年第23期18-22,共5页
Feed Industry
基金
国家木薯产业技术体系[CARS-12]
国家薯类加工技术研发分中心共同资助
关键词
木薯
嫩茎叶
饲料
品质评价
cassava
tender stalk and frondage
feed
analytic evaluation
