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Influence of outdoor and indoor rearing system of suckling lambs on fatty acid profile and lipid oxidation stability of raw and cooked meat

Nudda, Anna and Battaccone, Gianni and Boe, Roberta and Manca, Maria Grazia and Rassu, Salvatore Pier Giacomo and Pulina, Giuseppe (2013) Influence of outdoor and indoor rearing system of suckling lambs on fatty acid profile and lipid oxidation stability of raw and cooked meat. Italian Journal of Animal Science, Vol. 12 (4), e74. eISSN 1828-051X. Article.

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DOI: 10.4081/ijas.2013.e74

Abstract

Effect of outdoor (OUT) or indoor (IND) rearing systems (RS) of 48 male and female Sarda suckling lambs on fatty acid (FA) composition and lipid oxidation of raw and cooked meat was studied. Ewes grazed daily on natural pasture for 6 hours. During grazing time of ewes, IND lambs were kept indoors whereas OUT lambs followed the mother. Slaughter age was 28 days. RS did not affect meat chemical composition, pH, cooking loss and FA profile. Microwave cooking changed markedly the concentrations of almost all meat FAs and FA classes: short (-28%) and medium chain fatty acids (-11%), saturated fatty acids (-7.6%), odd-number carbon and branched-chain FA (-11.8%), proportion of long chain fatty acids (+5.3%) and PUFAn-3 (+37.3%) and PUFAn-6 (+26.1%) class. Sex influenced significantly the concentration of the main odd-number carbon and branched chain fatty acid. OUT rearing system increased MDA concentration (P<0.01). RS X cooking interaction affected PUFA and MDA, which were higher in cooked samples of OUT than IND lambs. The results evidenced that the meat composition of suckling lambs is affected by the feeding system of the mother rather than the management system of lambs.

Item Type:Article
ID Code:9668
Status:Published
Refereed:Yes
Uncontrolled Keywords:Lamb, meat quality, fatty acid profile, oxidation, rearing system
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/19 Zootecnica speciale
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Agraria
Publisher:Avenue media on behalf of Scientific Association of Animal Production (ASPA)
eISSN:1828-051X
Copyright Holders:© Copyright A. Nudda et al., 2013 LicenseePAGEPress, Italy
Deposited On:10 Mar 2014 10:15

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