SELKO TMR

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Selko | TMR

Preserve the value of your dairy ration with Selko-TMR

Figure 1: Effect of fermentation on sugar level and dry matter percentage o an untreated TMR. Sugal level was reduced by 50% over a period of 24 hours.

The impact of elevated temperatures on quality of dairy feed

Fresh TMR for dairy cows contains yeasts, moulds and bacteria that can reduce the quality of the dairy ration. Growth of these micro-organisms leads to heating and fermentation, which reduces both the palatability and the feeding value of the ration. Particularly the easily fermentable proteins, carbohydrates and starch are fermented into water and CO2 (see Figure 1) reducing the dry matter and therefore nutritional value of the dairy feed.

Growth of micro-organisms and fermentation in TMR of dairy cows starts once the ingredients have been exposed to oxygen in the air and results in an increase of the temperature of the TMR. On a warm day in the summer, increases of more than 20°C are not uncommon. Once environmental temperatures start rising, performance of the dairy herd is under pressure for two reasons. Firstly, dairy cows could potentially suffer from heat stress resulting in a decrease of dry matter intake. Secondly, the reduction of palatability and feeding value resulting from heating of the TMR will lead to a further reduction of dry matter intake of dairy cattle.

Selko® | sharing latest scientific insights

"Cattle feed composition is a promising way to reduce methane gas emissions"

Join Dr. E. Kebreab on our webinar, Friday May 26 2023: "Effective strategies to reduce the carbon footprint of dairy cattle"

You can no longer register for this webinar. A video recording of the webinar will be made available soon.

Selko® | sharing latest scientific insights

"Cattle feed composition is a promising way to reduce methane gas emissions"

Join Dr. E. Kebreab on our next webinar, Friday May 26 2023: "Effective strategies to reduce the carbon footprint of dairy cattle"

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Selko® | sharing latest scientific insights

"Cattle feed composition is a promising way to reduce methane gas emissions"

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Selko-TMR, dosage and administration

Treating the TMR

The standard amount of Selko-TMR to be added to dairy feed is 1.5 liters of Selko-TMR per 1000 kg of TMR. Add 2 liters of Selko-TMR if the risk of fermentation and heating is high:

  • If grass silage with more than 45% of dry matter or corn silage with more than 38% dry matter is included in the TMR of dairy cattle
  • If the cutting edge of the silage is irregular
  • If water is being added to the dairy TMR
  • If the environmental temperature is above 21 °C
  • If the feeding frequency is once per 2 days
  • If a premix of ingredients is being made

Treating the cutting edge of the silage

When a silage is sensitive for fermentation and heating at the cutting edge, the surface can be treated with Selko-TMR in order to slow down the fermentation. Spray 0.25 liter of Selko-TMR per square meter cutting surface.

Treating the top layer of the silage

If moulding of the top layer of the silage is a problem, Selko-TMR can be used at a dose of 0.5 liter of Selko-TMR per square meter.

Selko | solutions based on science

Increase your milk production by improving fibre digestibility

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Selko | Solutions based science

Manage hindgut health to maintain dairy performance with Selko® LactiBute.

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for a free consult.

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Figure 2: Increase in temperature of a TMR treated with Selko-TMR compared to a TMR treated with potassium sorbate and a untreated TMR.

Selko-TMR for dairy

Selko-TMR is a blend of organic acids that reduces the growth of yeasts, moulds and bacteria such as Enterobacteriaceae like Salmonella. As a result of the reduction in growth of micro-organisms, increases in temperature of the TMR are delayed by at least 6 hours in TMR treated with Selko-TMR (see Figure 2).

Download more research and documentation

You can access all of our documentation such as the science behind Selko research documents, Selko technical bulletins about transition management and technical product data sheets or feeding schedules.

Preserve the value of your feed

Selko-TMR is a blend of organic acids reducing growth of yeasts, moulds, Enterobacteriaceae and Salmonella in silage of dairy cows. The reduction in growth of micro-organisms delays increases in temperature of the TMR for at least 6 hours, Silages treated with Selko-TMR maintain their feeding value and palatabilty, resulting in a higher intake of dry matter.

Download the product brochure to learn how Selko-TMR helps to preserve the value of your feed.

Register once and download all you need

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