Effects of Dietary Replacement of Soybean Meal with Corn Distillers Dried Grain with Solubles on Growth Performance and Carcass Characteristics of Broilers
Effects of Dietary Replacement of Soybean Meal with Corn Distillers Dried Grain with Solubles on Growth Performance and Carcass Characteristics of Broilers
Xiaopeng Tang1*, Kangning Xiong1, Peng Peng2 and Dun Deng2*
ABSTRACT
The purpose of the present study was to investigate the effects of dietary replacement of soybean meal (SBM) with corn distillers dried grain with solubles (cDDGS) on growth performance and carcass characteristics of broilers. A total of six hundred and forty-eight 21-day-old Sanhuang Broiler with similar weight (443.89 ± 13.2 g) were divided into 6 treatments: (1) Control group (T0), (2) 20% replacement group (T1), (3) 40% replacement group (T2), (4) 60% replacement group (T3), (5) 80% replacement group (T4), and (6) 100% replacement group (T5). Each treatment had 6 replicates, and each replicate had 18 broilers. The experiment lasted for 21 days. The results showed that: (1) Dietary replacement of SBM with cDDGS had significant (P < 0.05) effects on the final body weight, ADG, ADFI and F/G of broilers. (2) Dietary replacement of SBM with cDDGS had significant (P < 0.05) effects on the slaughter rate, semi-eviscerated rate of broilers, and there was a tendency of decrease in eviscerated rate when dietary replacement of 40% SBM with cDDGS (P = 0.053). There were no effects of dietary replacement of SBM with cDDGS on breast muscle rate and abdominal fat rate (P > 0.5). In conclusion, under the conditions of the present study, dietary replacement of SBM with cDDGS had significant effects on the growth performance and carcass characteristics of broilers. Based on the results from this experiment, it could conclude that dietary replacement of no more than 40% SBM with cDDGS (cDDGS amount less than 13.55%) may be used safely in commercial broilers diets.
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