Czech J. Anim. Sci., X:X | DOI: 10.17221/29/2026-CJAS

The effect of cattle breed on the quality of intramuscular fatOriginal Paper

Natalie Klessy1, Eva Straková ORCID...1
1 Department of Animal Breeding, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Brno, Czech Republic


The aim of the study was to verify whether differences in intramuscular fat quality, evaluation based on fatty acid profile and ratios, occur between cattle genotypes – the combined performance cattle breed Czech Fleckvieh and the beef breed Aberdeen Angus – under identical rearing conditions (same pasture location and nutritional management) with extensive grazing. The results of observation show the difference in the quality of intramuscular fat of bulls with combined performance and bulls with meat performance in extensive pastoral farming. Breed differences were reflected by a statistically significantly higher mean intramuscular fat (P ≤ 0.05) in the beef cattle breed (149 ± 60.1 g/kg dry matter) compared to the combined performance breed (120 ± 51.8 g/kg dry matter). A higher saturated fatty acid (SFA) value of 53.4 ± 22.2 g/kg dry matter was observed in the beef cattle breed compared to SFA 40.8 ± 18.9 g/kg dry matter (P ≤ 0.05) in the combined performance cattle breed; a higher monounsaturated fatty acid (MUFA) value of 43.8 ± 26.3 g/kg dry matter compared to a MUFA value of 42.3 ± 20.8 g/kg dry matter (P > 0.05); and a higher value of polyunsaturated fatty acids n-3 (PUFA n-3) 0.76 ± 0.33 g/kg dry matter (P ≤ 0.05) compared to PUFA n-3 0.48 ± 0.21 g/kg dry matter in combined performance cattle breed. A higher value of polyunsaturated fatty acids n-6 (PUFA n-6) 3.66 ± 1.39 g/kg dry matter was found in the combined performance cattle breed compared to the meat cattle breed with PUFA n-6 3.54 ± 0.96 g/kg dry matter (P > 0.05). A more favourable n-6/n-3 PUFA ratio was observed in the Aberdeen Angus (P ≤ 0.05). The results suggest that the different genotypes of the bull breeds studied, reared on extensively used pasture, may influence the amount of intramuscular fat and its quality.

Keywords: Aberdeen Angus; Czech Fleckvieh; dietary fat; fatty acid; pasture

Received: March 2, 2026; Accepted: April 9, 2026; Prepublished online: April 27, 2026 

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