Document Detail

Towards amino acid recommendations for specific physiological and patho-physiological states in pigs.
MedLine Citation:
PMID:  22607969     Owner:  NLM     Status:  MEDLINE    
The objective of this review is to provide an overview of the implication of amino acids (AA) in important physiological functions. This is done in the context of pig production where the competition for AA utilisation is exacerbated by constraints to maximise productive responses and the necessity to reduce dietary protein input for environmental, economic and sanitary issues. Therefore, there is an opportunity to refine the nutritional recommendations by exploring the physiological roles of AA. For example, methionine and cysteine, either in selenised or sulfur forms, are directly involved in the regulation of the glutathione antioxidative system. In sows, glutathione antioxidative system may contribute to improving ovulation conditions through control of oxidative pressure. Supplementation of sow diets with l-arginine, a precursor of NO and polyamines, may stimulate placental growth, promoting conceptus survival, growth and tissue development. The beneficial effect of arginine supplementation has been also suggested to improve lactation performance. Feed intake is usually the first response that is impacted by an inadequate AA supply. Valine and tryptophan imbalances may act as signals for decreasing feed intake. AA are also important nutrients for maintaining the animal's defence systems. Threonine, one of the main constituents of mucin protein, is important for gut development during the postnatal period. It may exert a protective effect that reduces the impact of weaning on gut morphology and associated disturbances. Finally, tryptophan is involved in the regulation of the defence system through its action as a precursor of antioxidants and its effect on the inflammatory response.
Nathalie Le Floc'h; Florence Gondret; J Jacques Matte; Hélène Quesnel
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Publication Detail:
Type:  Journal Article; Review     Date:  2012-05-21
Journal Detail:
Title:  The Proceedings of the Nutrition Society     Volume:  71     ISSN:  1475-2719     ISO Abbreviation:  Proc Nutr Soc     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-07-19     Completed Date:  2012-11-27     Revised Date:  2013-04-24    
Medline Journal Info:
Nlm Unique ID:  7505881     Medline TA:  Proc Nutr Soc     Country:  England    
Other Details:
Languages:  eng     Pagination:  425-32     Citation Subset:  IM    
INRA, UMR1348 Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage (PEGASE), F-35590 Saint-Gilles, France.
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MeSH Terms
Amino Acids / pharmacology*,  therapeutic use
Animal Nutritional Physiological Phenomena*
Antioxidants / metabolism
Diet / veterinary*
Dietary Proteins / pharmacology*,  therapeutic use
Energy Intake / drug effects
Fetal Development / drug effects
Gastrointestinal Diseases / prevention & control,  veterinary
Growth / drug effects
Inflammation / prevention & control,  veterinary
Reg. No./Substance:
0/Amino Acids; 0/Antioxidants; 0/Dietary Proteins

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

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