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Effect of pig breed and dietary protein level on selected fatty acids and stearoyl-coenzyme A desaturase protein expression in longissimus muscle and subcutaneous fat

2013-07-23Journal article Restricted access
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dc.contributor.authorBessa, R. J. B.
dc.contributor.authorHughes, R. A.
dc.contributor.authorJeronimo, E.
dc.contributor.authorMoreira, O. C.
dc.contributor.authorPrates, J. A. M.
dc.contributor.authorDoran, O.
dc.date.accessioned2014-09-05T10:45:05Z
dc.date.available2014-09-05T10:45:05Z
dc.date.issued2013-07-23
dc.descriptionArticles in International Journalspor
dc.description.abstractThe aims of the study were 1) to investigate effects of a low protein diet on fatty acids content and composition of the LM and subcutaneous adipose tissue in 3 genetically diverse breeds, Large White × Landrace, Alentejano, and Bizaro, and 2) to determine whether the effect of the low protein diet of fatty acid composition is associated with dietary modulation of stearoyl-CoA desaturase (SCD) protein expression. The experiments were conducted on 12 Large White × Landrace, 12 Alentejano, and 10 Bízaro female and male pigs. The average animal BW at the beginning of experiments was 40.8, 40.7, and 38.3 kg for Large White × Landrace, Alentejano, and Bízaro, respectively, and the BW of animals at slaughter was 90 kg. The diets contained 202 or 169 g/kg DM of CP (high and low protein diets, respectively) and were balanced in essential AA. The diets were fed until the animals reached 90 kg BW (approximately 73 d). It was established that Large White × Landrace pigs had a less (P = 0.001) total fatty acid content in subcutaneous adipose tissue when compared with Alentejano and Bízaro and less (P < 0.001) intramuscular fat (IMF) content when compared with Alentejano. There was a positive relationship between SCD protein expression in the LM and MUFA content (r = 0.627, P = 0.029) and SCD protein expression and total muscle fatty acids content (r = 0.725, P = 0.008) in Large White × Landrace but not in Alentejano and Bizaro breeds. It has been suggested that SCD protein expression is associated with regulation of fat deposition only in breeds with genetic predisposition to a low IMF content.por
dc.identifier.citationBESSA, R.J.B., Hughes, R.A., Jeronimo, E., Moreira, O.C., Prates, J.A.M., & Doran, O. (2013). Effect of pig breed and dietary protein level on selected fatty acids and stearoyl-coenzyme A desaturase protein expression in longissimus muscle and subcutaneous fat. Journal of Animal Science, 91(9), 4540–4546. doi:10.2527/jas.2012-5963por
dc.identifier.doi10.2527/jas.2012-5963
dc.identifier.issn0021-8812
dc.identifier.urihttp://hdl.handle.net/10400.5/7101
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Society of Animal Sciencepor
dc.subjectFatty acid compositionpor
dc.subjectLow protein dietpor
dc.subjectPig breedpor
dc.subjectStearoyl-coenzyme A desaturase protein expressionpor
dc.titleEffect of pig breed and dietary protein level on selected fatty acids and stearoyl-coenzyme A desaturase protein expression in longissimus muscle and subcutaneous fatpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage4546por
oaire.citation.issue9
oaire.citation.startPage4540por
oaire.citation.titleJournal of Animal Sciencepor
oaire.citation.volume91por
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor

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