Abstract: 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.

Key words: CNCPS; unconventional feed; nutritive value; Anhui and the surrounding areas