YANG Bing,XIA Xian-lin,HU Zhong-ze,et al.Effect of Dietary Energy and Protein Levels on Growth of Lean Meat Growing and Fattening Pigs[J].Soybean Science,2012,31(02):299-301.[doi:10.3969/j.issn.1000-9841.2012.02.030]
日粮能量和蛋白水平对瘦肉型生长育肥猪生长性能的影响
- Title:
- Effect of Dietary Energy and Protein Levels on Growth of Lean Meat Growing and Fattening Pigs
- 文章编号:
- 1000-9841（2012）02-0299-03
- 分类号:
- S828
- 文献标志码:
- A
- 摘要:
- 选取60±1.5 kg、90.0±1.5 kg杜长大(D×L×Y)生长育肥猪48头（公母比例为1∶1），通过对平均采食量(ADFI)、平均日增重(ADG)和料重比(F/G)进行比较分析，考察蛋白和能量水平对其生长性能的影响。结果表明：日粮能量和蛋白水平对60~90 kg瘦肉型生长育肥猪ADG、ADFI和F/G均有显著影响（P<0.05）；日粮能量和蛋白水平对90~120 kg生长育肥猪ADG的影响不显著（P>0.05），对ADFI、F/G影响显著（P<0.05）。60~90 kg、90~120 kg阶段杜长大生长育肥猪适宜的能量和蛋白水平分别为13.90 MJ·kg-1、15.90%和14.62 MJ·kg-1、14.90%;多元回归分析得到90~120 kg瘦肉型生长育肥猪DEI、CPI与ADG的回归方程为:ΔW=-12.772DEI+23.467CPI+351.156(R2=0.881,P<0.05)。
- Abstract:
- Two group D×L×Y lean meat growing and fattening pigs of 60±1.5 kg and 90.0±1.5 kg in Guiyang were selected,each group had forty-eight pigs and the ratio of male to female was 1∶1.Four levels of energy and protein were supplied for each group;then determined the average daily gain(ADG),average daily feed intake(ADFI)and feed/gain(F/G).For the 60-90 kg pigs,dietary energy and protein levels showed significant（P<0.05）effect on ADG,ADFI and F/G.For the 90-120 kg pigs,dietary energy and protein levels showed significant（P<0.05）effect on ADFI and F/G.The suitable dietary energy and protein levels for 60-90 kg and 90-120 kg pigs were 13.90 and 14.62 MJ·kg-1,15.90% and 14.90%,respectively.The regression equations among ADG,intake of digestive energy(DEI)and crude protein(CPI)for 90-120 kg pigs gained by multiple regression analysis was ΔW=-12.772* DEI+23.467* CPI+351.156(R2=0.881,P<0.05).
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备注/Memo
基金项目：贵州省科技厅农业攻关重大项目(20076013)；贵阳市科技局农业项目(201044)。