Document Detail


Tissue distribution of gossypol enantiomers in broilers fed various cottonseed meals.
MedLine Citation:
PMID:  11469655     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Plasma and tissue concentrations of total, (+)- and (-)-gossypol were determined in broilers fed cottonseed meals (CSM) from eight oil mills (five expander solvent, two expeller, and one direct solvent). Free gossypol in the meals ranged from 0.033 to 0.180%, and total gossypol ranged from 0.974 to 1.459%. The (+)-enantiomer of gossypol varied from 53.8 to 61.3% of total gossypol. Eight CSM diets containing 28% CSM and a soybean meal control diet were fed to 162 1-d-old male broiler chicks during a 3-wk starter period. Concentrations of free gossypol in the CSM diets ranged from 92 to 504 microg/g, and total gossypol ranged from 2,626 to 4,085 microg/g. All diets were formulated with the same concentrations of digestible lysine and methionine and were fed ad libitum. At 21 d of age, there were no significant differences in body weights, feed conversions, or mortality of birds fed the CSM diets when compared to birds fed the soybean meal diet. Concentrations of (+)- and (-)-gossypol in plasma, liver, kidney, and muscle increased linearly as the level of free gossypol increased in the diets. Liver had the highest concentration of total gossypol (71.4 to 313.6 microg/g DM) followed by kidney (9.2 to 36.3 microg/g DM), plasma (3.0 to 14.6 microg/mL), and muscle (2.1 to 9.8 microg/g DM). The proportion of (-)-gossypol was higher in plasma (26.7%) and kidney (25.6%) than in muscle (19.1%) and liver (16.0%). Performance data from this study indicate CSM can be used successfully in chick starter diets at levels up to 28% when diets are formulated on a digestible amino acid basis.
Authors:
D A Gamboa; M C Calhoun; S W Kuhlmann; A U Haq; C A Bailey
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Poultry science     Volume:  80     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-07-25     Completed Date:  2001-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  920-5     Citation Subset:  IM    
Affiliation:
Department of Poultry Science, Texas Agricultural Experiment Station, Texas A&M University System, College Station 77843-2472, USA.
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MeSH Terms
Descriptor/Qualifier:
Animal Feed*
Animals
Chickens / metabolism*
Cottonseed Oil*
Gossypol / analysis*,  blood,  chemistry
Kidney / chemistry
Liver / chemistry
Male
Muscles / chemistry
Regression Analysis
Stereoisomerism
Tissue Distribution
Chemical
Reg. No./Substance:
0/Cottonseed Oil; 303-45-7/Gossypol

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


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