In this research, we synthesized oxazine and thiazine derivatives (3-6). These of chacone compounds (1 2) that from 4- hydroxyacetophenone aldehyde such as, 4-bromobenzaldehyde chlorobenzaldehyde. chalcone (1-2) reacted with urea to produce as 4-[4-amino-6-(4-subsutitedphenyl)-2H-1,3-oxazin-2-yl] phenol (3 4) thiourea 4-[4-amino-6-(4-subsutitedphenyl)-2H-1,3-thiazin-2-yl] (5 6). were characteri...

in order to study the effects of various levels of protein in diet based on total and digestible amino acids on performance and carcass traits of broilers, an experiment was conducted as a completely randomized design with 288 broiler chicks from cobb 500 strain in 6 treatments, each treatment consist of 3 replicates with 16 chicks per replicate. treatments were the diets as follow: 1) diet for...