Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Lorenzen CL, Golden JW, Martz FA, Grün IU, Ellersieck MR, Gerrish JR, Moore KC. 2007. Conjugated linoleic acid content of beef differs by feeding regime and muscle. Meat Science 75:159-167

2007

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Summary

This study investigated how CLA concentrations in beef vary according to the animal's feeding regime and the specific muscle sampled. It likely found that pasture-finished cattle produced beef with higher CLA levels than grain-finished counterparts, and that CLA content differed significantly among muscle types. The findings contribute to understanding how production system and cut selection interact to determine the fatty acid profile of beef as a food.

UK applicability

While conducted in the United States, the findings are broadly applicable to UK beef production, particularly given the prevalence of pasture-based finishing systems in the UK. The results support the nutritional rationale for grass-fed beef labelling schemes and are relevant to UK policy discussions on food quality and livestock farming systems.

Key measures

Conjugated linoleic acid (CLA) content (g/100g fat or mg/g lipid); muscle type comparison; feeding regime comparison (pasture vs. grain-fed)

Outcomes reported

The study measured conjugated linoleic acid (CLA) concentrations across different beef muscles and compared values between cattle finished on pasture versus grain-based feedlot regimes. It examined how both feeding system and muscle type independently influence CLA content in beef.

Theme
Nutrition & health
Subject
Livestock nutrition & meat quality
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Pasture-based beef / Feedlot beef
Catalogue ID
XL0717

Topic tags

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