Did you know that Total Mixed Ration (TMR) spoilage can start even at ambient temperatures as low as 21°C? This poses a hidden yet significant threat to feed quality and cattle performance.
Scientific research has shown that TMR exposed to air at ambient temperatures between 20-22°C can experience internal temperature increases of 5 to 30°C above the environment. This heat buildup is primarily driven by microbial activity, especially yeasts and molds.
As temperature rises:
Warm weather combined with poor feed-out practices (like long exposure to air or inadequate face management) creates ideal conditions for aerobic spoilage.
Aerobic instability accelerates nutrient losses. Higher moisture content and oxygen exposure favor yeast and mold proliferation. Even well-preserved silages or TMRs can spoil rapidly if not managed at the point of feeding.
To safeguard feed quality:
TMR spoilage doesn’t wait for extreme heat. It can begin quietly at moderate temperatures, especially above 20°C. The resulting nutrient loss and reduced intake can have major consequences for productivity. Proactive management is key to maintaining feed integrity and supporting herd performance.
For more details on organic acid solutions and how to preserve the value of your TMR click the link below for more insights.
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