Abstract: Nutritional components of “9501” Paulownia flowers from three areas were analyzed used national standard method,and compared with other commonly used plant feed protein source.The results showed that:the Paulownia flowers water,protein,fiber,fat,ash respectively 8.69%-9.08%,11.5%-12.8%,10.7%-13.6%,5.6%-6.0%,5.4%-9.4% of the total dry weight;Calcium,Phosphorus contents of mineral element in 0.59%-0.63% and 0.59%-0.63%,the ratio of Calcium to Phosphorus was 1.85%-1.91%;the paulownia flowers contain 18 kinds of amino acids,total 8.97%-9.06%,essential amino acids content of which was 3.76%-3.91% and the essential amino acid index (EAAI) average value was 1.11, Paulownia flowers had developed into protein feed potential.

Key words: Paulownia flower, nutritional composition, amino acid, analysis