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Titolo:
Effect of double-muscling in Belgian Blue young bulls on the intramuscularfatty acid composition with emphasis on conjugated linoleic acid and polyunsaturated fatty acids
Autore:
Raes, K; de Smet, S; Demeyer, D;
Indirizzi:
State Univ Ghent, Dept Anim Prod, Fac Agr & Appl Biol Sci, B-9090 Melle, Belgium State Univ Ghent Melle Belgium B-9090 pl Biol Sci, B-9090 Melle, Belgium
Titolo Testata:
ANIMAL SCIENCE
, volume: 73, anno: 2001,
parte:, 2
pagine: 253 - 260
SICI:
1357-7298(200110)73:<253:EODIBB>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
ADIPOSE-TISSUE; FEED CONVERSION; BEEF; CATTLE; BREED; MILK; ATHEROSCLEROSIS; PHOSPHOLIPIDS; METHYLATION; HEREFORD;
Keywords:
beef; Belgian Blue; double muscling; fatty acids; linoleic acid;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: de Smet, S State Univ Ghent, Dept Anim Prod, Fac Agr & Appl Biol Sci, Proefhoevestr 10, B-9090 Melle, Belgium State Univ Ghent Proefhoevestr 10 Melle Belgium B-9090 Belgium
Citazione:
K. Raes et al., "Effect of double-muscling in Belgian Blue young bulls on the intramuscularfatty acid composition with emphasis on conjugated linoleic acid and polyunsaturated fatty acids", ANIM SCI, 73, 2001, pp. 253-260

Abstract

The effect of double-muscling (DM) genotype (double-muscling, mh/mh; heterozygous, mh/+; normal, +/+) of Belgian Blue (BB) young bulls on the intramuscular fatty acid composition, in particular conjugated linoleic acid (CLA)and polyunsaturated fatty acids (PUFA) was examined in five different muscles. The relative fatty acid composition showed only minor differences between muscles within genotypes. However, the DM genotype had a large effect on both the intramuscular total fatty acid content and on the relative fattyacid composition. Across muscles, the mh/mh animals had a lower total fatty acid content compared with the +/+ animals (907 v. 2656 mg/100 g muscle; P < 0.01) and a higher PUFA proportion in total fatty acids (27.5 v. 11.3 g/100 g total fatty acids; P < 0.001), resulting in a higher PUFA/saturated fatty acid ratio (0.55 v. 0.18; P < 0.01) and a lower n-6/n-3 ratio (5.34 v. 6.17; P < 0.01). The heterozygous genotype was intermediate between the two homozygous genotypes. The relative CLA content was similar in the mh/mh and +/+ genotypes and approximated 0.4 to 0.5 g/100 g total fatty acids. From the data it is further suggested that differences in the metabolism of the n-3 and n-6 fatty acids could exist between DM genotypes.

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Documento generato il 05/04/20 alle ore 02:46:56