The TMR360 approach: A holistic approach to dairy TMR feed safety

Total Mixed Ration (TMR) is essential in modern ruminant nutrition, delivering balanced nutrients in every bite. However, its complexity also makes it vulnerable. With multiple ingredients and constant exposure during storage and feeding, TMR can become a source of mycotoxins, harmful bacteria, and spoilage organisms like yeasts and molds.

Feed safety is a major hidden risk in dairy production. Contaminants such as mycotoxins and microbes interact, amplifying their impact on animal health, performance, and profitability. The TMR360 program addresses this by providing integrated analysis of mycotoxins and microbial contamination—including yeasts, molds, enterobacteria, and pathogens—to protect feed quality and farm performance.

Trouw Nutrition TMR360 program  

The TMR360 program is a comprehensive feed risk assessment developed by Trouw Nutrition to evaluate and manage hygienic challenges that can compromise the safety and quality of dairy TMR.

It provides an integrated analysis of mycotoxins and microbial contamination, including yeasts, molds, Enterobacteriaceae, and pathogenic microorganisms. These contaminants can negatively affect feed stability, animal health, and performance—ultimately reducing income over feed costs and overall farm profitability.

By combining advanced laboratory diagnostics with expert technical interpretation, TMR360 enables farmers, producers and nutritionists to:

  • Identify hidden feed safety risks posed by various contaminants
  • Understand the combined impact on animal health and productivity
  • Based on the results, tailored mitigation strategies are recommended
    to support feed quality, gut integrity, animal resilience and
    production efficiency.

How does TMR360 work

TMR360 provides a comprehensive overview of feed safety risks in animal feed by:

  • Screening for multiple mycotoxins and specific microbes to capture a broad contamination profile
  • Calculating a combined performance risk to reflect combined exposure
  • Converting data into clear, practical recommendations to support informed decision-making

  • Sampling
    Feed samples are collected directly on-farm or at the feed mill.

  • Advanced analysis
    Samples are analysed for a wide range of mycotoxins and microbes using reliable laboratory methods.

  • Expert evaluation
    Results are reviewed to assess contamination levels and potential risk.


  • Clear reporting
    Insights are shared in an easy-to-understand report via an online platform.

  • Practical insights
    Our Trouw Nutrition experts support you in interpreting the results and defining the right actions.

Key contaminants in TMR

Mycotoxins: The invisible threat 

Mycotoxins are toxic secondary metabolites produced by fungi and are commonly found in silages, grains, and by-products used in Total Mixed Rations (TMR).

  • Invisible and chemically stable, often persisting long after visible mold growth has disappeared.
  • Frequently go undetected without laboratory analysis.
  • Typically cause chronic, subclinical health and performance issues rather than acute disease.

Common mycotoxins and their impacts include:

  • Aflatoxins → liver damage, immune suppression, milk contamination
  • Deoxynivalenol (DON) → lameness, immunosuppression
  • Zearalenone (ZEN) → irregular heats, reduced conception rates, ovarian cysts, abortions
  • DON and T-2 toxin → reduced milk production, mastitis, gastroenteritis, hemorrhagic bowel syndrome, impaired rumen function and nutrient absorption, diarrhea, ketosis
  • DON, T-2 toxin, and Fumonisin (FUM) → feed refusal, reduced feed intake, and lower feed efficiency

Co-contamination is the rule, not the exception. Multiple mycotoxins frequently occur simultaneously, and even at low concentrations they can interact synergistically, amplifying their negative effects on animal health and productivity.

Microbial contamination: more than just molds

In addition to mycotoxins, microbial contamination can significantly impact feed quality, animal performance, and health.

Primary microbial risks include:

  • Yeasts → initiate aerobic spoilage, causing feed heating, nutrient losses, and reduced energy value.
  • Molds → proliferate following yeast activity and oxygen exposure, degrading nutrients and potentially producing additional mycotoxins.
  • Enterobacteria and Clostridia → indicators of suboptimal hygiene and poor fermentation, often associated with nutrient losses, reduced feed quality, and lower animal performance.
  • Pathogenic bacteria (e.g., Clostridium, Listeria, Salmonella) → pose direct health risks to animals, potentially leading to disease, reduced productivity, and food safety concerns.

Together, microbial contamination and mycotoxins can compromise feed hygiene, nutritional value, animal health, and farm profitability, making comprehensive monitoring essential for effective feed risk management.

The synergy problem: when 2 + 2 = 7

Even when individual contaminants are below recognized risk thresholds, their combined effects can significantly amplify negative outcomes.

In lactating cows, a TMR containing a spectrum of low-level mycotoxins can markedly suppress milk production and reduce dry matter intake—often more severely than exposure to the same toxins individually.

At the same time, the presence of mycotoxins alongside spoilage organisms like yeasts and molds can impair rumen fermentation, reduce fiber digestibility, and compromise the rumen’s natural detoxification capacity.

Mycotoxins also affect more than digestion. They can disrupt gut barrier function and weaken immune responses, creating favorable conditions for harmful bacteria to grow and spread.

It’s not just the level of contamination—it’s the interaction. Small risks, when combined, can have a major impact on performance and profitability.

A holistic TMR360 safety strategy includes:

Raw material risk assessment

  • Evaluate silages, grains and by-products for visible defects, microbial load, dryness, and prior spoilage history.

  • Consider agronomic, harvest, and storage conditions, including weather stress, field contamination risk, silo density, packing quality and oxygen exposure during storage. Each of these factors can have an impact on mycotoxin contamination and microbial growth.

Fermentation quality control

  • The quality of the ensiling process of can be improved by ensuring rapid anaerobic conditions, correct chop length, adequate compaction, and the use of suitable inoculants to promote lactic‑acid–dominated fermentation.

  • Monitor the pH of a silage and ensure stability and hygiene. A fast pH decline and minimal aerobic activity in a silage clamp reduce the risk of yeast and mold proliferation and subsequent toxin formation.

Feed-out management

  • Minimize oxygen exposure at the silage face and during mixing of a TMR for dairy cattle by maintaining clean, tight surfaces, removing only what is needed, and preventing excessive disturbance.
  • Prevent heating of a TMR, sorting, and secondary feed spoilage by controlling feed-out speed, avoiding inclusion of visibly spoiled layers, maintaining mixer hygiene, and delivering dairy rations with stable moisture and temperature.

Continous monitoring

  • Track feed intake of the dairy herd, milk production parameters and dairy health indicators to detect changes of feed quality, dairy performance, health and fertility early and rule out feed hygiene issues as early as possible.
  • Regular checks of TMR are essential to monitor feed safety KPIs such as temperature, mycotoxin levels and microbial contamination of a dairy TMR.

Why this matters

TMR360 helps shift feed management from a reactive to a proactive approach, supporting safer rations, heathlier cows and a more sustainabble dairy performance.

TMR360 is a trusted analytical service, combining:

  • Mycotoxin & microbial expertise

     

  • Nutritional interpretation & insights


  • Integrity-driven tailored support and advice

TMR360: A holistic approach to TMR feed safety

Download the TMR360 brochure here.

For more information on TMR360, contact your local Trouw Nutrition representative today!

 

 

Trouw Nutrition international presence 

Trouw Nutrition offers a global network of accredited laboratories, helping feed and livestock producers design sampling and testing programs tailored to their specific operations. Each year, the organization processes around 50,000 samples and conducts over 200,000 tests, supported by a team of 61 specialists.

Through the TMR360 program digital portal, producers can easily access, review, and interpret their results. With guidance from local experts, they can take timely, targeted actions to improve feed quality, safeguard animal health and performance, and strengthen overall farm profitability.

Operating with a strong international footprint, more than 60% of samples originate from outside domestic markets. The service supports over 20% of Nutreco customers and contributes significantly to the company’s broader portfolio, while a small share (around 2%) comes from external, non-Nutreco clients.

 

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