Document Detail

Biotin status, blood pyruvate carboxylase (EC activity and performance in broilers under different conditions of bird husbandry and diet processing.
MedLine Citation:
PMID:  7417395     Owner:  NLM     Status:  MEDLINE    
1. Three experiments were conducted to investigate the relationships between blood pyruvate carboxylase (pyruvate: carbon dioxide ligase (ADP-forming), EC; PC) activity, growth performance and dietary biotin level in broilers under different husbandry conditions. Blood PC activity was also used to gain information on the ingestion of biotin faecal origin by birds housed on wood shavings and the effect of steam-pelleting on the biotin content of diets. 2. Blood PC activity and relationship to dietary biotin level were similar in birds kept under different husbandry conditions. 3. Biotin requirement for growth was higher in birds kept under conditions that allowed them to reach their growth potential more fully. 4. The contribution of biotin of faecal origin to the biotin intake of birds housed on wood shavings was negligible at 3 weeks of age but by 7 weeks was equivalent to approximately 0.01 mg/kg diet. 5. Steam-pelleting did not affect the stability or availability of biotin of natural or synthetic origin in diets. 6. It is concluded that blood PC activity is a good criterion of biotin status and requirement in fast-growing broilers.
C C Whitehead; D W Bannister
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The British journal of nutrition     Volume:  43     ISSN:  0007-1145     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  1980 May 
Date Detail:
Created Date:  1980-12-18     Completed Date:  1980-12-18     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  541-9     Citation Subset:  IM    
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MeSH Terms
Animal Husbandry*
Biotin / administration & dosage*
Body Weight / drug effects
Chickens / growth & development*,  metabolism
Food Handling
Pyruvate Carboxylase / blood*
Reg. No./Substance:
58-85-5/Biotin; EC Carboxylase

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

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