Acomparassion betweeneffect of Iraqi method(Uropygealectomy) with addition of Iraqi probiotic in the ration with their effect on productive performance of ross broiler

Abstract

This study was conducted in the poultry farm of Al-Mussayab Technical college Babylon provinceto investigate the effect of uropygealectomy with addition of 0.4%Iraqi probiotic in some productive traits of ross broiler chickens. Atotal of 180,one day old chicks,40gm/chick,were randomly allocated in to equaltreatments, each treatment in cluded 3replicates (15chick/replicate) and fed on astandard ration contained Iraqi probiotic at arate of 0.4%for the third and fourth treatment(T3,T4) ,uropygealectomy was applied for chicks at the end of the second week for the second and fourth treatment (T2,T4) , where as the first treatment was left with out addition of probiotic nor uropygealectomized for comparassion. Daily and total weight gain of chickens were calculated for three periods (1-21day), (21-42day) and(1-42day) ,feed consumption, feed conversion rate , dressing and carcass cuts percentages and the productive index at the end of the experiment. Results illustrated high significant differences in daily and total weight dains for each period ,feed consumption and high significant reductionof feed efficiency in treatments where the chickens were uropygealectomized and additionof probiotic with their both effect as comparared with control treatment . Results also showed high significant differences in dressing percentage, percentage of pectoral cuts and productive index and high significant reduction in backcuts of all treatments of uropygealectomy with addition of probioticand with their both effect in compararassion with control, mean while ,it was non significantin thigh cuts which were represented by edibaleoffals (liver,heart and gizzard) ,wings and neck in comparassion with the control treatment .