An experiment was conducted to study the effect of dried tomato pomace (DTP) and a multienzyme
preparation supplementation (Rovabio ExcelTM) on the performance and carcass quality of broiler
chickens. A 4 × 2 factorial arrangement of treatments comprising 4 dietary DTP levels (0, 8, 16 and 24%)
with and without enzyme supplementation was used. Each diet was fed to 4 replicates pens of 8 broiler
chicks from 1 to 42 days posthatch as a coarse mash. The addition of DTP up to 16% to broiler diets did
not significantly affect feed intake (FI), body weight gain (BWG) and feed conversion ratio (FCR) during
starter (1 to 21 days), growing (22 to 42 days) and entire experimental (1 to 42 days) periods. Inclusion
of 24% DTP into the diet significantly decreased FI at starter and entire experimental periods. Also,
inclusion of 24% DTP into the diets significantly decreased BWG and increased FCR at all periods.
Birds fed the diets supplemented with Rovabio ExcelTM had significantly higher BWG during the starter
and entire experimental periods. No significant effect of enzyme addition was observed on FI and FCR.
The dietary treatments with or without enzyme did not significantly affect mortality. The 8% DTP-fed
group had comparable carcass weight, carcass yield, yield of breast, thigh, abdominal fat, heart, liver
and gizzard with those of control group. The higher levels of DTP significantly decreased carcass
weight and yield, yield of breast and thigh when compared to the control group. Enzyme
supplementation significantly increased carcass weight and yield of abdominal fat. No significant
interactions between the DTP and enzyme were observed for performance parameters and carcass
characteristics. These results demonstrate that supplementation of DTP up to 8% to broiler diets had no
significant adverse effects on performance parameters and carcass characteristics. The enzyme had a
significant effect on BWG, carcass weight and yield of abdominal fat.
An experiment was conducted to study the effect of dried tomato pomace (DTP) and a multienzyme
preparation supplementation (Rovabio ExcelTM) on the performance and carcass quality of broiler
chickens. A 4 × 2 factorial arrangement of treatments comprising 4 dietary DTP levels (0, 8, 16 and 24%)
with and without enzyme supplementation was used. Each diet was fed to 4 replicates pens of 8 broiler
chicks from 1 to 42 days posthatch as a coarse mash. The addition of DTP up to 16% to broiler diets did
not significantly affect feed intake (FI), body weight gain (BWG) and feed conversion ratio (FCR) during
starter (1 to 21 days), growing (22 to 42 days) and entire experimental (1 to 42 days) periods. Inclusion
of 24% DTP into the diet significantly decreased FI at starter and entire experimental periods. Also,
inclusion of 24% DTP into the diets significantly decreased BWG and increased FCR at all periods.
Birds fed the diets supplemented with Rovabio ExcelTM had significantly higher BWG during the starter
and entire experimental periods. No significant effect of enzyme addition was observed on FI and FCR.
The dietary treatments with or without enzyme did not significantly affect mortality. The 8% DTP-fed
group had comparable carcass weight, carcass yield, yield of breast, thigh, abdominal fat, heart, liver
and gizzard with those of control group. The higher levels of DTP significantly decreased carcass
weight and yield, yield of breast and thigh when compared to the control group. Enzyme
supplementation significantly increased carcass weight and yield of abdominal fat. No significant
interactions between the DTP and enzyme were observed for performance parameters and carcass
characteristics. These results demonstrate that supplementation of DTP up to 8% to broiler diets had no
significant adverse effects on performance parameters and carcass characteristics. The enzyme had a
significant effect on BWG, carcass weight and yield of abdominal fat.
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