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Effect of Dietary Energy and Protein Levels on Growth of Lean Meat Growing and Fattening Pigs(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年02期
Page:
299-301
Research Field:
Publishing date:

Info

Title:
Effect of Dietary Energy and Protein Levels on Growth of Lean Meat Growing and Fattening Pigs
Author(s):
YANG Bing1; XIA Xian-lin1; HU Zhong-ze2; CAI Zhi-hua2
1.College of Animal Science,Guizhou University,Guiyang 550025,Guizhou;
2.College of Animal Science,Anhui Science and Technology University,Fengyang 233100,Anhui,China
Keywords:
Lean meat growing and fattening pigs; Energy; Crude protein; Growth performance
PACS:
S828
DOI:
10.3969/j.issn.1000-9841.2012.02.030
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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Last Update: 2014-08-16