Back to first-pass browser

First-pass extracted concept

dietary LA:ALA ratio

Candidate: concept label1 source documents5 linked claims
Jump to explainersJump to evidenceJump to sourcesJump to claims
Live refresh every 5sNext refresh in 5s

Aliases

LA:ALA, linoleic-b1-linolenic acid ratio

Extracted Explainers

What the tool is doing

This study uses the dietary LA:ALA ratio as the main intervention variable, comparing 6:1 versus 2:1 diets in lactating Holstein cows.

Source 1DOIPubMed

Resources required

Executing this intervention requires controlled diet formulation and feeding in dairy cows across early to mid lactation.

Source 1DOIPubMed

What problem it solves

It addresses whether lowering the omega-6:omega-3 balance changes cyclicity, early pregnancy measures, and milk production traits.

Source 1DOIPubMed

What it does not solve

The abstract does not establish a discrete engineered tool or identify the specific feed ingredients used to achieve the ratio.

Source 1DOIPubMed

Alternatives

The abstract contrasts only the two LA:ALA diet ratios, Low-OMG3 and High-OMG3.

Source 1DOIPubMed

Evidence Snippets

The aim of this study was to evaluate the effect of the linoleic-b1-linolenic acid ratio (LA:ALA)... Holstein cows were randomized to a 6:1-LA:ALA diet (Low-OMG3) or a 2:1-LA:ALA diet (High-OMG3).
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1intervention effectsupports2026Source 1DOIPubMed

Compared with the 6:1 LA:ALA diet, the 2:1 LA:ALA diet increased corpus luteum size and blood flow after timed artificial insemination.

Quoted textsource-backed
High-OMG3 cows had larger corpus luteum size (11-32 d post-timed artificial insemination [TAI]) and greater blood flow (32-60 d post-TAI) than Low-OMG3 cows.
Claim 2intervention effectsupports2026Source 1DOIPubMed

Compared with the 6:1 LA:ALA diet, the 2:1 LA:ALA diet increased milk production and lactose and tended to increase protein yield.

Quoted textsource-backed
High-OMG3 cows produced more milk throughout the study, had greater lactose, and tended to have greater protein yield at 50DIM.
Claim 3intervention effectsupports2026Source 1DOIPubMed

Compared with the 6:1 LA:ALA diet, the 2:1 LA:ALA diet increased omega-3 concentrations in milk and blood in Holstein cows.

Quoted textsource-backed
As expected, omega-3 concentrations in milk and blood increased in the High- compared to Low-OMG3 cows.
Claim 4null effectsupports2026Source 1DOIPubMed

Changing the dietary LA:ALA ratio showed no effect on cyclicity by 45 DIM or oocyte quality at 50 DIM.

Quoted textsource-backed
No effect of diet was observed on cyclicity by 45DIM or oocyte quality at 50DIM.
Claim 5null effectsupports2026Source 1DOIPubMed

Changing the dietary LA:ALA ratio showed no effect on progesterone, pregnancy-associated glycoproteins, or conceptus size.

Quoted textsource-backed
However, there was no effect of diet on progesterone, pregnancy-associated glycoproteins, or conceptus size.