| The effect of the protein level in a pre-starter diet on the post-hatch performance and activation of ribosomal protein S6 kinase in muscle of neonatal broilers. | |
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MedLine Citation:
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PMID: 19747420 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The cytoplasmic serine/threonine ribosomal protein S6 kinase (S6K1) plays a critical role in controlling protein translation. There is evidence that amino acids regulate S6K1 and protein synthesis in avian species, but the effect of dietary protein level on the activation of S6K1 in neonatal chicks is unknown. Therefore, the aim of the present experiment was to investigate the effect of different protein levels, supplied during the first 5 d post-hatch, on body growth, breast muscle development and on the activation of S6K1 and its downstream target, the S6, in neonatal chicks. Chicks were fed a pre-starter diet during the first 5 d post-hatch containing low (19.6 % crude protein (CP); LP), medium (23.1 % CP; MP) or high (26.7 % CP) levels (HP) of protein. Weight gain of chicks fed the HP diet was higher (P < 0.05) compared with those fed the LP diet during day (d)3-d5 and the numerical advantage of this group was maintained from d2 to d7. On d2 and d3, greater levels of S6K1 and S6 phosphorylation and/or activity were observed in chicks receiving the HP diet compared with LP and MP diets, without differences between results of the latter two dietary treatments. In conclusion, the present results suggest that early protein nutrition impacts the development of broiler chicks. |
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Authors:
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Nadia Everaert; Quirine Swennen; Sonia Métayer Coustard; Hilke Willemsen; Christine Careghi; Johan Buyse; Veerle Bruggeman; Eddy Decuypere; Sophie Tesseraud |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-09-14 |
Journal Detail:
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Title: The British journal of nutrition Volume: 103 ISSN: 1475-2662 ISO Abbreviation: Br. J. Nutr. Publication Date: 2010 Jan |
Date Detail:
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Created Date: 2009-12-24 Completed Date: 2010-02-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372547 Medline TA: Br J Nutr Country: England |
Other Details:
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Languages: eng Pagination: 206-11 Citation Subset: IM |
Affiliation:
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Laboratory for Physiology and Immunology of Domestic Animals, Department of Biosystems, K.U. Leuven, Kasteelpark Arenberg, 30, 3001 Leuven, Belgium. nadia.everaert@biw.kuleuven.be |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animals Animals, Newborn Chickens Dietary Proteins / pharmacology* Energy Metabolism Growth / drug effects Muscle, Skeletal / drug effects, enzymology* Phosphorylation Ribosomal Protein S6 Kinases / metabolism* Ribosomal Protein S6 Kinases, 90-kDa / metabolism Weight Gain / drug effects |
| Chemical | |
Reg. No./Substance:
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0/Dietary Proteins; EC 2.7.11.1/Ribosomal Protein S6 Kinases; EC 2.7.11.1/Ribosomal Protein S6 Kinases, 90-kDa |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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