用CNCPS体系评定安徽及其周边地区非常规饲料的营养价值

试验旨在评定安徽及其周边地区非常规饲料的营养价值,应用康奈尔净碳水化合物—蛋白质体系(CNCPS)提出的碳水化合物和蛋白质分类方法,对安徽省的合肥市、六安市、安庆市、铜陵市、亳州市、宿州市和河南省信阳市及甘肃省、黑龙江两省采集的21个非常规饲料样品进行常规营养成分分析,并通过CNCPS方法计算出饲料碳水化合物和蛋白质组分。结果显示,宿州花生桔秆可溶性蛋白占粗蛋白质(SCP/CP)比例最高(55.92%),合肥麦秸最低(6.85%);合肥油菜秸秆木质素(ADL)最高(23.16%),合肥稻草ADL最低(4.14%)。蛋白质中真蛋白的含量以合肥笋壳最高(99.83%),以宿州麦秸最低(44.96%);碳水化合物中不可利用纤维(CC)以宿州花生壳最高(47.94%),以合肥笋兜最低(10.74%)。结果表明,CNCPS体系较全面的评定了非常规饲料的营养特性,反映了非常规饲料的优劣程度,可作为安徽地区饲料营养价值评定方法。

Evaluation of Nutritive Value of Unconventional Feed in Anhui Province and the Surrounding Areas Using CNCPS

This study was conducted to evaluate the nutritive value of unconventional feed in Anhui province and the surrounding areas using Cornell net carbohydrate and protein system (CNCPS).Total 21 unconventional feeds were collected from different sites in Anhui (Hefei, Lu'an, Anqing, Tongling, Bozhou and Suzhou citys), Henan (Xinyang city), Heilongjiang province as well as Gansu province, and the carbohydrate and the protein ingredients of feeds were calculated respectively using the provided formula in CNCPS.The results showed that, SCP/CP of peanut stalk from Suzhou was the highest (55.92%) and that of wheat stalk from Hefei was the lowest (6.85%); Rape stalk from Hefei had the highest value of ADL (23.16%) while straw from Hefei had the lowest value (4.14%).As to the true protein, shoot shell from Hefei was in the highest level (99.83%), while wheat stalk from Suzhou had the lowest value (44.96%); In terms of unavailable fiber content, oray from Suzhou was the highest (47.94%), and takenoko pocket from Hefei was the lowest (10.74%).The experimental results showed that the CNCPS could comprehensively evaluate the nutritive value of unconventional feed and reflecte the pros and cons of unconventional feed in Anhui province and the surrounding areas.It was suggested that the method of CNCPS could be used in the evaluation of feedstuff in Anhui province.