Abstract: | The nutritional quality of some improved wheat varieties grown in pakistan was measured chemically (including amino acid analyses) and biologically in n-balance experiments with growing rats. the protein content ranged from 12.3 to 16.7%. lysine per 100 g protein varied between 2.46 and 2.90%. the protein of chenab-70, punjab-76 and barani-70 contained 16-18 % more lysine than the sa-75 having highest content of protein. iron content was highest in pari-73. the true protein digestibility (td), biological value (bv), net protein utilisation (npu) and net dietary protein calorie percent (ndp cal %) varied between 91-94 %, 58-69 %, 54-63 % and 7.4-8.8 %, respectively. available carbohydrate, lysine and biological value were lowered in varieties with a higher content of protein. |