Effect of slaughter season on fatty acid composition, conjugated linoleic acid isomers and nutritional value of intramuscular fat in Barrosa-PDO veal

被引：59

作者：

Alfaia, Cristina M. M.

Castro, Matilde L. F.

Martins, Susana I. V.

Portugal, Ana P. V.

Alves, Susana P. A.

Fontes, Carlos M. G. A.

Bessa, Rui J. B.

Prates, Jose A. M.

机构：

[1] Polo Univ Alto Ajuda, Fac Med Vet, CIISA, P-1300477 Lisbon, Portugal

[2] Ctr Estudos Farmaceut, Fac Farm, P-1649003 Lisbon, Portugal

[3] Estacao Zootecn Nacl, Inst Nacl Invest Agrar & Pescas, P-2005048 Vale De Santarem, Portugal

来源：

MEAT SCIENCE | 2007年 / 75卷 / 01期

关键词：

veal; fatty acids; CLA isomers; meat quality; production systems;

D O I：

10.1016/j.meatsci.2006.06.013

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

This paper describes the influence of slaughter season on lipid content, fatty acid composition, conjugated linoleic acid (CLA) isomeric profile and nutritional value of fat in Barrosd veal from calves reared according to the specifications of the Protected Designation of Origin (PDO). Barrosd purebred calves (n = 27) were raised in a traditional production system and slaughtered in early autumn (October) and late spring (June). Barrosd-PDO veal only presented seasonal differences in the levels of some minor fatty acids and CLA isomers, as well as in the PUFA/SFA ratio. Based on the analysed grass intake indicators, it was shown that veal-PDO has similar values to pasture-fed cattle for both slaughter seasons. From a human nutrition perspective, intramuscular fat in Barrosd-PDO veal has a high nutritional value throughout the year, since CLA contents and the percentages of the c9,t11 isomer are relatively high, and the n - 6/n - 3 ratios are within the recommended values for the human diet. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：44 / 52

页数：9

共 57 条

[1]

*AG TECHN, 2001, AG CHEM LC 3D SYST

[2] Fatty acid composition, conjugated linoleic acid isomers and cholesterol in beef from crossbred bullocks intensively produced and from Alentejana purebred bullocks reared according to Carnalentejana-PDO specifications [J].