Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Dairy fatty acids & herbage

Elgersma, A.

2015

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Summary

This review, published in the journal Animal, examines the relationship between herbage composition and the fatty acid profile of dairy milk, a topic of considerable nutritional and agricultural importance. Elgersma synthesises evidence on how pasture-based feeding, including the influence of grass species, legumes, and seasonal variation, modifies the concentration of nutritionally beneficial fatty acids — notably CLA and alpha-linolenic acid — in milk fat. The paper likely concludes that pasture access and herbage quality are key determinants of milk fatty acid composition, with implications for both dairy management practice and consumer health.

UK applicability

The findings are highly applicable to UK conditions, where pasture-based dairy systems are widespread and there is growing policy and consumer interest in the nutritional quality of grass-fed dairy products. UK farmers and advisers can draw on this evidence to inform grazing management decisions aimed at improving milk fatty acid profiles.

Key measures

Milk fatty acid composition (g/100g fat); conjugated linoleic acid (CLA) content; omega-3 to omega-6 ratio; herbage fatty acid content; pasture species composition

Outcomes reported

The study examined how the botanical and chemical composition of herbage influences the fatty acid profile of dairy milk, with particular attention to beneficial fatty acids such as conjugated linoleic acid (CLA) and omega-3 fatty acids. It likely reported on how pasture-based feeding systems compare with conserved forage or concentrate-based diets in terms of milk fat quality.

Theme
Nutrition & health
Subject
Dairy nutrition & milk composition
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
Europe
System type
Pasture-based dairy
Catalogue ID
XL0941

Topic tags

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