Document Detail

The efficiency of energy retention of broiler chickens and turkeys fed on diets with different lysine concentrations.
MedLine Citation:
PMID:  19093245     Owner:  NLM     Status:  MEDLINE    
1. An experiment determined the effect of 6 different lysine concentrations (40, 52, 58, 65, 90 and 130 g/kg CP) in two protein concentrations (210 and 260 g/kg) on the efficiency of energy utilisation of broiler chickens and turkeys. Ninety-six male Ross 308 broiler chicks and 96 male BUT Big 6 turkey poults were fed at 90% of ad libitum during a 12 d bioassay period. At the end of the bioassay, birds were slaughtered and carcase crude protein, fat and gross energy were measured and nutrient metabolisability determined. 2. Broiler chickens had lower AME and AME(N) than turkeys. AME was higher in the 260 g/kg than in the 210 g/kg protein diet; however, no difference was evident in AME(N) between any of the diets in both species. A significant species x lysine interaction indicated that the decrease in AME and AME(N) with increasing lysine was greater in turkeys than in broiler chickens. 3. Turkeys had lower weight gains and efficiencies of energy retention than broiler chickens. The effects of different lysine concentrations on growth and the efficiency of energy retention were significant and growth responses were quadratic but there were negative linear responses in the efficiency of energy retention in both species at both crude protein concentrations. The efficiency of energy retention was increased with decreasing lysine concentrations throughout the wide range of concentrations used in the experiment.
N Priyankarage; S P Rose; S S P Silva; V R Pirgozliev
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British poultry science     Volume:  49     ISSN:  1466-1799     ISO Abbreviation:  Br. Poult. Sci.     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-12-18     Completed Date:  2009-02-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  15740290R     Medline TA:  Br Poult Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  721-30     Citation Subset:  IM    
The National Institute of Poultry Husbandry, Harper Adams University College, Newport, Shropshire, England.
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MeSH Terms
Animal Feed*
Body Composition
Chickens / anatomy & histology,  growth & development,  metabolism*
Dietary Proteins / metabolism
Energy Metabolism / drug effects*
Lysine / administration & dosage*
Nutritive Value
Proteins / chemistry*
Turkeys / anatomy & histology,  growth & development,  metabolism*
Reg. No./Substance:
0/Dietary Proteins; 0/Proteins; 56-87-1/Lysine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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