Fatty acid composition of lamb meat from the autochthonous Jezersko-Solčava breed reared in different production systems.
Thirty two autochthonous Jezersko-Solčava lambs were used to investigate the effect of production (pasture vs. stable) and weaning system (suckling vs. weaned) on fatty acid composition of Longissimus dorsi intramuscular fat in a 2 × 2 factorial design. Pasture lambs had lower intramuscular fat concentration (P<0.0001) more PUFA and trans C18:1, more ALA (P=0.0322), ARA (<0.0001) and EPA (0.0149) but less SFA (P<0.0001) than stable lambs. Weaning system affected PUFA (P=0.0040) and MUFA (P=0.0070) but not SFA and trans C18:1 fatty acids. The interaction of production system and weaning system was significant mainly for trans C18:1 and trans C18:2 fatty acids. Finally, lamb meat from all four treatments which are traditionally used in rearing of Jezersko-Solčava lambs are favourable from the nutritive point of view, due to their low n-6/n-3 ratio.
Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, SI-1230 Domžale, Slovenia. Electronic address: angela.cividini@bf.uni-lj.si.
Angela
A
Cividini
Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, SI-1230 Domžale, Slovenia.
Alenka
A
Levart
Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, SI-1230 Domžale, Slovenia.
Silvester
S
Žgur
Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, SI-1230 Domžale, Slovenia.
Drago
D
Kompan
D000273:Adipose Tissue / Q000737:chemistry; D000821:Animal Feed; D000822:Animal Husbandry / Q000379:methods; D000818:Animals; D001947:Breeding; D004032:Diet; D004041:Dietary Fats / Q000032:analysis*; D005227:Fatty Acids / Q000032:analysis*; D006801:Humans; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry*; D009753:Nutritive Value; D034561:Sheep, Domestic; D014886:Weaning
D004041:Dietary Fats; D005227:Fatty Acids
Autochthonous breed; Fatty acids; Jezersko–Solčava sheep; Lamb meat; Pasture; Production system