Fatty acid composition in subcutaneous, intermuscular and intramuscular fat deposits of suckling lamb meat: Effect of milk source

Abstract. In this study, we aimed to determine the slaughter-carcass characteristics, meat quality, and fatty acid composition in lambs raised under intensive and extensive conditions. The animal material consisted of 30 Norduz male lambs, with an average age of 171 days. The lambs were divided into two groups: concentrate-fed lambs (CO) and pasture-fed lambs (PS). The results showed that the CO lambs had heavier carcasses (p< 0.001), a higher dressing percentage (p< 0.001), and higher intramuscular fat (p< 0.01) than the PS lambs. It was determined that the longissimus thoracis muscle of the CO lambs had a lower ultimate pH and higher L* and water-holding capacity than the PS lambs. In this study, intramuscular fat (longissimus thoracis, semimembranosus, triceps brachii), subcutaneous and tail fat samples were used to evaluate the effect of feeding system on fatty acid composition. The polyunsaturated fatty acid to saturated fatty acid ratio (PUFA ∕ SFA) of intramuscular fat was found to be significantly higher in the CO group than in the PS lambs, while similar subcutaneous and tail fat results were found in both groups. Moreover, the PS lambs had a lower n6 ∕ n3 ratio and higher percentage of omega-3 than the CO lambs in all tissues studied (p< 0.05). Overall, the CO lambs have heavier and fattier carcasses with better meat quality traits than the PS lambs. However, the effects of feeding system have varying results based on the fatty acid composition of different types of fat deposits.

Download Full-text

Der Einfluss der Fütterung auf die Zusammensetzung des intra-muskulären Fettes des <i>Musculus longissimus</i> und verschiedener Fettdepots von Jungbullen der Rassen Ungarisches Grauvieh und Holstein Friesian – 1. Mitteilung: Fettsäurezusammensetzung

Archives Animal Breeding ◽

10.5194/aab-48-537-2005 ◽

2005 ◽

Vol 48 (6) ◽

pp. 537-546

Author(s):

G. Holló ◽

K. Nuernberg ◽

I. Repa ◽

I. Holló ◽

J. Seregi ◽

...

Keyword(s):

Fatty Acids ◽

Fatty Acid Composition ◽

Fatty Acid ◽

Linoleic Acid ◽

Linolenic Acid ◽

Acid Composition ◽

Intramuscular Fat ◽

Longissimus Muscle ◽

Fat Deposits ◽

Holstein Friesian

Abstract. Title of the paper: Effect of feeding on the composition of the intramuscular fat in longissimus muscle and different fatty tissues of Hungarian Grey and Holstein Friesian bulls. 1. Fatty acid profile The aim of this study was to analyse the effect of nutrition, genotype and nutrition x genotype interaction on the fatty acid composition of intramuscular fat from longissimus dorsi muscle and different fat deposits using Hungarian Grey cattle bulls (HG) in comparison to Holstein Friesian bulls (HF) kept under extensive and intensive conditions. The extensive group was kept on pasture and was fed a concentrate supplemented with linseed meal in the last month of the trial. The extensive diet influenced the linoleic and linolenic acid ratio and the CLA content of longissimus muscle more advantageous concerning human nutrition. The meat from HG contained more CLA and less n-6 fatty acids also in case of the intensive diet than that of HF bulls. In the fat deposits from HF the PUFA mainly the linoleic acid was in a significant higher proportion available, however in the fat deposits of HG was the percentage of linol- and linolenic acid favourable. The extensive nutrition resulted in a lower linoleic acid and a higher linolenic acid content in both breeds and all three fat deposits. The PUFA content in the fat samples was altered contrary in both analysed breeds because of the different diet. In case of the extensive UG was the PUFA higher in all three fat deposits. In conclusion, the fatty acid composition of beef can be modified favourably by extensive feeding and concentrate which is rich in unsaturated fatty acids, however the beef of Hungarian Grey has a more wholesome influence on human health, than that of Holstein-Friesian bulls.

Download Full-text

Prediction of lamb meat fatty acid composition using near-infrared reflectance spectroscopy (NIRS)

Food Chemistry ◽

10.1016/j.foodchem.2011.01.084 ◽

2011 ◽

Vol 127 (3) ◽

pp. 1280-1286 ◽

Cited By ~ 63

Author(s):

F. Guy ◽

S. Prache ◽

A. Thomas ◽

D. Bauchart ◽

D. Andueza

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Acid Composition ◽

Near Infrared ◽

Reflectance Spectroscopy ◽

Infrared Reflectance ◽

Near Infrared Reflectance Spectroscopy ◽

Near Infrared Reflectance ◽

Infrared Reflectance Spectroscopy ◽

Lamb Meat

Download Full-text

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

Meat Science ◽

10.1016/j.meatsci.2006.06.013 ◽

2007 ◽

Vol 75 (1) ◽

pp. 44-52 ◽

Cited By ~ 41

Author(s):

Cristina M.M. Alfaia ◽

Matilde L.F. Castro ◽

Susana I.V. Martins ◽

Ana P.V. Portugal ◽

Susana P.A. Alves ◽

...

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Linoleic Acid ◽

Conjugated Linoleic Acid ◽

Acid Composition ◽

Nutritional Value ◽

Intramuscular Fat

Download Full-text

Lamb meat quality and intramuscular fatty acid composition as affected by concentrates including different legume seeds

Italian Journal of Animal Science ◽

10.4081/ijas.2011.e18 ◽

2011 ◽

Vol 10 (2) ◽

pp. e18 ◽

Cited By ~ 13

Author(s):

Massimiliano Lanza ◽

Carla Fabro ◽

Manuel Scerra ◽

Marco Bella ◽

Renato Pagano ◽

...

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Meat Quality ◽

Acid Composition ◽

Lamb Meat ◽

Legume Seeds

Download Full-text

Fatty acid composition of subcutaneous and intramuscular adipose tissue in east Balkan pigs

Biotechnology in Animal Husbandry ◽

10.2298/bah1504543p ◽

2015 ◽

Vol 31 (4) ◽

pp. 543-550 ◽

Cited By ~ 2

Author(s):

T. Popova ◽

J. Nakev ◽

Y. Marchev

Keyword(s):

Fatty Acids ◽

Adipose Tissue ◽

Fatty Acid Composition ◽

Fatty Acid ◽

Polyunsaturated Fatty Acids ◽

Acid Composition ◽

Subcutaneous Fat ◽

Intramuscular Fat ◽

Longissimus Dorsi ◽

Intramuscular Adipose Tissue

The aim of this study was to provide information on the fatty acid profile of different adipose depots - subcutaneous (upper and inner backfat layers) and intramuscular (m. Longissimus dorsi) in East Balkan pigs. The animals were reared in free-range conditions and slaughtered at an average live weight of 107?1.65kg. The results of the study showed that the various adipose tissues in pigs have different lipid metabolism and hence differ in their fatty acid composition. Intramuscular fat had significantly higher content of the saturated C16:0 and C18:0 (P<0.001), as well as the C16:1 (P<0.001) than the subcutaneous fat. In regards to the content of the polyunsaturated fatty acids, the latter displayed considerably higher content of both C18:2 and C18:3 (P<0.001) in comparison to the intramuscular fat in m. Longissimus dorsi. The differences between the subcutaneous and intramuscular adipose tissue in the individual fatty acids determined the similar trend of change in the total content of saturated and polyunsaturated fatty acids. Significant differences between the backfat layers were detected for C16:1, C18:0 and C18:3 (P<0.001). Stearic acid (C18:0) displayed higher content of the inner, while both C16:1 and C18:3 had higher proportion in the outer backfat layer in the East Balkan pigs. Except for C20:2, the long chain polyunsaturated n-6 and n-3 fatty acids had significantly higher proportions in the intramuscular fat, however no differences were determined between the two backfat layers.

Download Full-text

Fatty acid composition of intramuscular fat and odour-active compounds of lamb commercialized in northern Spain

Meat Science ◽

10.1016/j.meatsci.2018.02.006 ◽

2018 ◽

Vol 139 ◽

pp. 231-238 ◽

Cited By ~ 12

Author(s):

Leire Bravo-Lamas ◽

Luis J.R. Barron ◽

Linda Farmer ◽

Noelia Aldai

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Acid Composition ◽

Intramuscular Fat ◽

Northern Spain ◽

Active Compounds

Download Full-text

QTL fine mapping for intramuscular fat and fatty acid composition using high-density SNP chip array on SSC12 in Korean native pig × Yorkshire F2 population

Czech Journal of Animal Science ◽

10.17221/50/2018-cjas ◽

2019 ◽

Vol 64 (No. 4) ◽

pp. 180-188

Author(s):

Sangwook Kim ◽

Byeonghwi Lim ◽

Kwansuk Kim ◽

Kyoungtag Do

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Candidate Genes ◽

Acid Composition ◽

Fine Mapping ◽

Intramuscular Fat ◽

Economic Benefits ◽

High Density ◽

Chromosome 12 ◽

Qtl Fine Mapping

Intramuscular fat (IMF) and fatty acid composition are characteristics that are used as important indicators of evaluating high quality pork and contribute to the economic benefits of the pig farming industry. In this study, quantitative trait loci (QTL) fine mapping of chromosome 12 was performed in a population of F2 intercross between Yorkshire (YS) and Korean native pigs (KNPs) by adopting combined linkage and linkage disequilibrium method using high-density SNP chips. QTLs for IMF (H3GA0034813 to H3GA0034965) and oleic acid (C18:1) (ASGA0054380 to ALGA0066299) were located at 120 cM (54.112–57.610 kb) and 85 cM (36.097–38.601 kb), respectively, within chromosome 12 (Sscrofa11.1 genomic reference). In addition, 31 candidate genes present within the IMF QTL region and 28 candidate genes existing within C18:1 QTL region were chosen. In order to understand the function of these candidate genes at the molecular level, these candidate genes were functionally categorized by studying gene ontology and analyzing network and pathway. Among the 59 candidate genes within the region of IMF QTL and C18:1 QTL, five (MYH1, MYH2, MYH4, ACACA, and RPS6KB1) directly interacting candidate genes were found. Furthermore, the RPS6KB1 gene was assumed to be an important candidate gene that is involved in leptin and insulin signaling pathway and participates in controlling adipogenic differentiation, fat deposition, and fatty acid composition, which is related to obesity of pigs.

Download Full-text