Journal cover Journal topic
Archives Animal Breeding Archiv Tierzucht
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.203 IF 1.203
  • IF 5-year value: 1.203 IF 5-year 1.203
  • CiteScore value: 0.98 CiteScore 0.98
  • SNIP value: 0.920 SNIP 0.920
  • SJR value: 0.390 SJR 0.390
  • IPP value: 0.89 IPP 0.89
  • h5-index value: 11 h5-index 11
  • Scimago H index value: 23 Scimago H index 23
Supported by
Logo Leibniz Institute for Farm Animal Biology Logo Leibniz Association
Volume 61, issue 4 | Copyright
Arch. Anim. Breed., 61, 395-403, 2018
https://doi.org/10.5194/aab-61-395-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Original study 26 Oct 2018

Original study | 26 Oct 2018

Fatty acids in intramuscular fat of Ile de France lambs in two different production systems

Milan Margetín1,2, Marta Oravcová1, Jana Margetínová1, and Róbert Kubinec3 Milan Margetín et al.
  • 1Department for Animal Husbandry Systems, Breeding and Product Quality, National Agricultural and Food Centre – Research Institute of Animal Production Nitra, 95141 Lužianky, Slovakia
  • 2Department of Animal Husbandry, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, 94976 Nitra, Slovakia
  • 3Institute of Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, 84215 Bratislava, Slovakia

Abstract. The fatty acid (FA) composition in the intramuscular fat (IMF) of the musculus longissimus dorsi (MLD) of Ile de France purebred lambs in two different production systems in Slovakia was evaluated using gas chromatography. In the first production system, lambs and ewes were assigned to pasture without access to concentrates (P). In the second system, lambs and ewes were confined indoors with hay/silage and access to concentrates (S). An analysis of variance with the following factors was employed: production system, sex, and production system–sex interactions. The proportions of arachidonic, eicosapentaeonic, docosapentaeonic, and docosahexaenoic FAs, i.e. long-chain polyunsaturated FA (PUFA), were significantly higher in P lambs (1.83, 0.82, 0.92, 0.29g100g−1 FAME, respectively) than in S lambs (0.45, 0.14, 0.30, 0.09g100g−1 FAME, respectively). The proportions of conjugated linoleic acid (CLA), n-6 PUFA, n-3 PUFA, and essential FA (linoleic and α-linolenic) were also significantly higher in P lambs (2.10, 8.50, 4.55, and 8.80g100g−1 FAME, respectively) than in S lambs (0.65, 3.27, 1.50, and 3.64g100g−1 FAME, respectively). The proportions of palmitic acid and myristic acid as important individual saturated FAs (SFA) were significantly higher in S lambs (28.51 and 8.30g100g−1 FAME, respectively) than in P lambs (21.80 and 5.63g100g−1 FAME, respectively). The proportion of all SFAs was also significantly higher in S lambs (57.87g100g−1 FAME) than in P lambs (48.70g100g−1 FAME). From a nutrition and human health point of view (i.e. higher proportions of PUFA, CLA, and essential FAs and lower proportions of SFAs), meat from P lambs was found to be more favourable and would be more highly recommended for consumption.

Download
Short summary
Fatty acid composition in the intramuscular fat of the musculus longissimus dorsi of Ile de France purebred lambs in two production systems (lambs and ewes were assigned to pasture and fed without concentrates vs. lambs and ewes were assigned to a stable and fed with hay/silage and concentrates) was evaluated using gas chromatography. An analysis of variance was used for comparison. No such comparison had previously been carried out in Slovakia. Meat from lambs assigned to pasture was better.
Fatty acid composition in the intramuscular fat of the musculus longissimus dorsi of Ile de...
Citation
Share