| Breast muscle development in commercial broiler chickens. | |
| | |
MedLine Citation:
|
PMID: 14601746 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Genetic and gender-related variations in breast muscle yield of broiler chickens may be attributed to differences in number and size of muscle cells (myofibers). In this study, male and female broilers from eight commercial strain crosses (SC) were compared for body and breast muscle weight with adjustment of the Gompertz function. Additionally, breast fillet dimensions (length, width, and depth) and myofiber density (myofiber number/area; MFD) were assessed. Live weight and breast muscle development was determined to 56 d of age at weekly intervals. MFD was assessed at 8 d of age. As expected, SC differed in BW, breast weight and yield, and breast fillet dimensions and had variations in growth curves. Maximal growth rate for breast weight was reached approximately 4 d after that of BW. Males and females showed different growth curves, with males having slower growth rate maturity parameter and reaching the maximal growth rate later than females for BW and breast weight. Breast depth was the breast measure with highest positive correlation to breast yield. SC differences could not be explained by MFD, but males had higher MFD density than females. The possible relationship of the MFD observations to total myofiber number is discussed. |
| | |
Authors:
|
G N Scheuermann; S F Bilgili; J B Hess; D R Mulvaney |
Related Documents
:
|
7134066 - Breast masses in young girls. report of five cases. 10456136 - Endemic goitre prevalence in ifedapo local government area of oyo state, nigeria. 16295496 - Apocrine carcinoma of the breast presenting as a solitary cyst: cytological and histopa... 8956546 - The changing histopathology of primitive lung cancer. 8702236 - Nm23 expression in advanced and borderline ovarian carcinoma. 16276696 - Clinicopathological features and molecular markers of breast cancer in jos, nigeria. |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Poultry science Volume: 82 ISSN: 0032-5791 ISO Abbreviation: Poult. Sci. Publication Date: 2003 Oct |
Date Detail:
|
Created Date: 2003-11-06 Completed Date: 2003-12-19 Revised Date: 2008-11-21 |
Medline Journal Info:
|
Nlm Unique ID: 0401150 Medline TA: Poult Sci Country: United States |
Other Details:
|
Languages: eng Pagination: 1648-58 Citation Subset: IM |
Affiliation:
|
Embrapa Suinos e Aves, Concordia, SC, Brazil, CEP:89700-000. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Body Weight Chickens / growth & development* Female Linear Models Male Mathematics Muscle Development* Muscle Fibers, Skeletal / ultrastructure Muscle, Skeletal / growth & development*, ultrastructure Organ Size Pectoralis Muscles / growth & development, ultrastructure Sex Characteristics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Bacterial recovery from breast skin of genetically feathered and featherless broiler carcasses immed...
Next Document: Estimating vaccine effects on transmission of infection from household outbreak data.