Document Detail


Dietary protein content influences both growth and size distribution of anterior and posterior muscle fibres in juveniles of Pagellus bogaraveo (Brunnich).
MedLine Citation:
PMID:  19153814     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Muscle cellularity was studied in Pagellus bogaraveo juveniles fed on diets with different protein contents. Measured in transversal body sections, at both post-opercular and post-anal locations, the morphometric variables estimated were: total muscle area (A), total number of fibres (N), number of fibres per unit area of muscle (N (A)) and cross-sectional fibre area (ā) of the two main muscle fibre types. At the end of the experiment fish fed on diets having more than 40% of protein displayed significantly higher body weight. Fish fed on protein-rich diets exhibited greater ā and N. For fish fed on 30 and 50% protein diets the morphometric parameters measured grew linearly with the fish weight. High-protein diets favoured muscle hyperplasia. When comparing rostral and caudal locations, a greater N and a smaller ā of posterior red fibres were the consistent differences found-a fact, to our knowledge, so far unreported for fish.
Authors:
P Silva; L M P Valente; M H Galante; C A P Andrade; R A F Monteiro; E Rocha
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-01-20
Journal Detail:
Title:  Journal of muscle research and cell motility     Volume:  30     ISSN:  1573-2657     ISO Abbreviation:  J. Muscle Res. Cell. Motil.     Publication Date:  2009  
Date Detail:
Created Date:  2009-05-12     Completed Date:  2009-07-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006298     Medline TA:  J Muscle Res Cell Motil     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  29-39     Citation Subset:  IM    
Affiliation:
Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.
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MeSH Terms
Descriptor/Qualifier:
Animal Nutritional Physiological Phenomena*
Animals
Body Size
Dietary Proteins / administration & dosage*
Muscle Development*
Muscle Fibers, Fast-Twitch / cytology,  drug effects
Muscle Fibers, Skeletal / cytology,  drug effects*
Muscle Fibers, Slow-Twitch / cytology,  drug effects
Perciformes / anatomy & histology*,  growth & development*
Chemical
Reg. No./Substance:
0/Dietary Proteins

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


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