Effects of a multi-enzyme complex on growth performance, nutrient utilization and bone mineralization of meat duck

• DOI: 10.1186/s40104-015-0013-4
• Publication Date: 2015-04-07T15:24:43Z
• Authors: Qiufeng Zeng; Xueqin Huang; Yuheng Luo; Xuemei Ding; Shiping Bai; Jianping Wang; Yue Xuan; Zhuowei Su; Yonggang Liu; Keying Zhang
• Keywords: Phytase

Previous studies with broiler have shown dietary supplementation multi-enzyme complex containing non-starch polysaccharides (NSP) degrading enzymes and phytase is efficient in releasing phosphorus (P), calcium (Ca), energy amino acids from corn-soybean meal diets or corn-sorghum diets, hence compensating considerable levels of nutrients formulation. Notwithstanding, such potentials not been well defined duck nutrition. Giving China being the largest producing country, we conducted this study to establish adequate specifications major along meat day-old slaughter, focusing on performance, utilization bone mineralization. Five treatments were: Positive control (PC,T1 ): concentration diet for 1 14 d age were apparent metabolizable energy(AME) 2,800 kcal/kg, crude protein (CP)19.39%, Ca 0.85%, available (avP) 0.42%; 15 35 these parameters AME 2,900 CP 16.47%,Ca 0.76%,avP 0.38%; Negative 1(NC1,T2), digestible (DAA) reduced by 70 kcal/kg 2.0%, avP 1.0 g/kg PC diet; 2( NC2,T4), down-spec was 100 DAA 2.5%, 1.5 1.2 g/kg; The enzyme added at same dosage (200 mL/ 1,000 kg) NC1 (T3) NC2 (T5) diets.Comparing ducks fed T1, T3 T5 birds showed lowest (P < 0.05) body weight ( 35), feed intake (d tibia ash, P contents 0.05). NC restored growth rate, mineralization level diet, increased 60 117 respectively diets.These results suggest that caused detrimental effects performance compared those losses can be compensated addition multiple-enzyme complex.