Selko Renergy

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Selko | Renergy®

Driving production efficiency of dairy cattle with Selko Renergy®

The difference between feed efficiency and production efficiency of dairy cows

Feed efficiency measures biological output of dairy cattle, the amount of energy-corrected milk per kg of feed consumed. It is calculated by dividing the amount of energy-corrected milk (ECM) by the dry matter intake (DMI). Sometimes the diet that has the highest feed efficiency is also more profitable, but this is not always the case. Production efficiency looks at the biological output per amount of money spent on feed. Production efficiency of dairy cows is sensitive to both changes in feed efficiency and changes in ingredient costs. It is therefore more predictive of dairy farm profitability than feed efficiency.

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"

Watch the recordings of Dr. E. Kebreab's webinar and learn how to reduce methane emissions and reduce the carbon footprint of dairy cattle. Learn why he endorses IntelliBond as a methane reducing feed additive.

Watch the videos

Selko Renergy

Rumen modifiers for dairy cows

Rumen modifiers are feed additives that alter one or more aspects of rumen fermentation of dairy cattle. Rumen modifiers for dairy cows can either change the digestibility of feed components, inhibit or stimulate specific microbial populations or enhance production of volatile fatty acids (VFA) in the rumen. VFA are a major source of energy for dairy cows.

Administration of Selko Renergy

Feed Selko Renergy at 30 grams/cow/day.



Selko | solutions based on science

Increase your milk production by improving fibre digestibility

Contact your local Selko IntelliBond representative for more information

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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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Increase milk production or lower your feed cost with Selko Renergy

Selko Renergy can be used to increase feed efficiency of dairy cattle by increasing the amount of milk produced out of their diet. Alternatively, Selko Renergy can be used to increase production efficiency of dairy cattle by adding it to the dairy diet and replacing expensive dairy feed ingredients with cheaper alternatives.

Option 1: Add Selko Renergy on top of your diet to increase milk production

Add Selko Renergy on top of the existing diet to increase energy available for milk production. Add Selko Renergy to the diets for:

  • Fresh cows
  • High yielding groups of cows
  • Transition cows

Option 2: Reformulate your diet to lower feed costs

Feeding Selko Renergy allows you to reduce the amount of expensive, energy-dense ingredients in the diet and replace the space with lower-cost ingredients like forages. Replace costly, energy-dense ingredients in the diet such as:

  • Rumen available fats
  • Rumen by-pass fats
  • Starch sources like corn

Increase production of volatile fatty acids in the rumen with Selko Renergy

An in-vivo trial was carried out by the Colorado State University to measure the impact of Selko Renergy on the production of volatile fatty acids in the rumen of steers on a diet with high levels of grain119.

Material and methods

Two groups of 4 ruminally canulated steers each were fed a high concentrate diet. One group was fed Selko Renergy at the recommended dose, the other group served as a control group. After 28 days of feeding Selko Renergy, VFA profiles and lactic acid levels were compared between the group of cattle fed Selko Renergy and the controls.

Results

Adding Selko Renergy to the diet resulted in a significant increase of total VFA by 13.3% and propionic acid by 25.7%. L-Lactate production tended to be decreased by 25.1% (see Figure 3).



Figure 3: Total production of VFA, production of propionate and production of lactate in steers fed Selko Renergy compared to untreated controls receiving the same diet.

Increase milk production by feeding Selko Renergy to dairy cattle

Three performance trials in lactating dairy cows were carried out.

Trial in transition cows

A total of 72 dairy cows were included in this trial to assess the impact of feeding Selko Renergy during the close-up, prepartum, and transition period until 28 days in milk. The four groups were:

• Selko Renergy fed only prepartum

• Selko Renergy fed only postpartum

• Selko Renergy fed both pre and postpartum

• Control group without Selko Renergy

Production of energy corrected milk (ECM) was significantly improved by 5.34 kg (p = 0.05) per day in the group of animals fed Selko Renergy both pre and postpartum, 3.12 kg (p = 0.02) per day in the group fed Selko Renergy only postpartum and 2.2 kg (p = 0.10) per day in the group fed Selko Renergy only prepartum.

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.

Releasing the power to drive production efficiency with Selko Renergy

Or visit our download center for more information:

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