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Titolo:
Fatty acid composition of adipose depots of suckling lambs raised under different production systems
Autore:
Velasco, S; Caneque, V; Perez, C; Lauzurica, S; Diaz, MT; Huidobro, F; Manzanares, C; Gonzalez, J;
Indirizzi:
Inst Nacl Invest & Tecnol Agr & Alimentaria, Dept Tecnol Alimentos, Madrid28040, Spain Inst Nacl Invest & Tecnol Agr & Alimentaria Madrid Spain 28040 40, Spain Univ Complutense, Fac Vet, E-28040 Madrid, Spain Univ Complutense MadridSpain E-28040 se, Fac Vet, E-28040 Madrid, Spain Inst Madrileno Invest Agr & Alimentaria, Madrid 28800, Spain Inst Madrileno Invest Agr & Alimentaria Madrid Spain 28800 28800, Spain
Titolo Testata:
MEAT SCIENCE
fascicolo: 3, volume: 59, anno: 2001,
pagine: 325 - 333
SICI:
0309-1740(200111)59:3<325:FACOAD>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLASMA-CHOLESTEROL; STEARIC-ACID; SERUM-LIPIDS; CARCASS FAT; TISSUES; MUSCLE; PATTERN; PASTURE; QUALITY; HEART;
Keywords:
lamb; adipose tissue; fatty acids; production system;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: Velasco, S Inst Nacl Invest & Tecnol Agr & Alimentaria, Dept Tecnol Alimentos, Carretera Coruna,Km 7-5, Madrid 28040, Spain Inst Nacl Invest & TecnolAgr & Alimentaria Carretera Coruna,Km 7-5 Madrid Spain 28040
Citazione:
S. Velasco et al., "Fatty acid composition of adipose depots of suckling lambs raised under different production systems", MEAT SCI, 59(3), 2001, pp. 325-333

Abstract

Forty-nine male Talaverana-breed suckling lambs slaughtered at 14 kg live weight were used to study the fatty acid composition of adipose depots of lambs raised under different management systems (pasture or drylot) and diets (maternal milk with or without a concentrate supplement). Drylot lambs displayed a higher fatness score, in addition to greater dorsal fat thickness; these parameters corresponded with a greater percentage of total fat at dissection. Addition of concentrate to the diet did not modify carcass fatness. Drylot lambs presented higher proportions of oleic acid (C18:1) and monounsaturated fatty acids (MUFA) and lower linolenic acid (C18:3) values in subcutaneous and intramuscular fat (muscle longissimus thoracis). The subcutaneous fat of these lambs thus displayed a higher n-6/n-3 PUFA ratio (C18:2/C18:3) than that of pasture-raised ones. Concentrate in the diet of both pasture and drylot lambs resulted in higher linoleic fatty acid (C18:2) andPUFA values and a greater PUFA/SFA ratio in intramuscular fat than the corresponding values of lambs which consumed maternal milk alone. Loin displayed a higher percentage of subcutaneous and intramuscular chemical fat than leg. Compared with intramuscular leg fat (muscle quadriceps femoris), intramuscular loin fat (muscle longissimus thoracis) had lower oleic acid (C18:1) and MUFA values, higher PUFA values and a higher PUFA/SFA ratio, due to greater linolenic acid (C18:3) levels. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/10/20 alle ore 23:19:53