EVALUATION OF TWO CHICKEN WEIGHTS ON PERCENTAGE OF PARTS AND DRESSING OF COBB 700 BROILER AT AGE 42 DAYS 1- PARTS AND DRESSING PERCENTAGE

Abstract

This study was carried out at the College of Agriculture University of Baghdad aiming to make evaluation of two weighs day old chick(41.0g) medium(M) and higher (H) of (46.06g) in body weight and carcass weight and percent of dressing and cuts and viscera , as it was brought up from hatchery chicks were separated into two categories of chick by 150 chick/category to the age of 42 days , the following results indicated that :- There were consequential better in live body weight , carcass weight and dressing percentage , also predominant in weight of the carcass main (breast , thigh . drumstick) and secondary cuts (neck , back , wing) for birds resultant from chicks weights highly comparison with weights medium with percent 7.75% and 8.87% respectively . There were consequential better in weight of heart , giblet , spleen also in percentage weight of the carcass main and secondary parts for birds resultant from chicks weights highly comparison with weights medium were 59.68% and 40.59% comparison with 58.15% and 38.44% respectively