# Microalgae Fully Replace Fishmeal and Fish Oil in Trout Feed

> UC Santa Cruz researchers replaced all fishmeal and fish oil in rainbow trout feed with microalgae and canola oil. In a feeding trial of more than two months, growth, digestion and fillet quality matched conventional feed. The results were published in Antioxidants in 2026.

- Date: 2026-11-14 · published 2026-11-14T12:06:17.154Z
- Category: report · region US · magnitude low
- Page: https://feedsoft.ai/events/99308-microalgae-fully-replace-fishmeal-and-fish-oil-in-trout-feed
- Commodities: [Fishmeal](https://feedsoft.ai/c/FISHMEAL.md)

## Why it matters

A proven full replacement of marine ingredients could reduce long-term demand for fishmeal in aquafeed, though this is a single research trial with no near-term commercial scale. Fishmeal supply is already tight, so the impact on prices is limited for now.

## Read by commodity

- FISHMEAL: bearish ▼

## Sources

- scibeat.com: https://scibeat.com/articles/microalgae-fully-replace-fishmeal-and-fish-oil-in-trout-feed

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.