Effects of the Commercial Enzyme Supplementation to the Rations on Broiler Performance

摘要

This study was conducted to determine the effects of using 2 different multi enzyme preparations on broiler performances. In the study, 270 7-day-old (Ross-308) broiler chicks were used. This study was conducted in 3 groups (Control, Multi enzyme A and Multi enzyme B) with 3 replicates of 30 chicks. During the study, commercial starter (7-21 days; 23% CP, 3100 kcal kg-1 ME), grower (21-35 days; 21% CP, 3200 kcal kg-1 ME) and finisher (35-42 days; 19% CP, 3200 kcal kg-1 ME) broiler diets were used and 1 kg/t enzyme (A and B) were added to the enzyme-containing groups. Enzyme supplementation did not affect the LWG, FI and FCR on 42nd day. Similarly, abdominal fat weight, digestive tract length, intestinal pH and dressing percentage were not affected by enzyme supplementation in females. In males, Multi enzyme B supplementation did not affect the parameters except dressing percentage. In mixed-sex group, Multi enzyme B supplementation had significant effect on edible organs weight, digestive tract weight and dressing percentage (p<0.05), but not on other traits.