Excential Rumenpass CH
Rumen bypass choline
Excential Rumenpass CH is rumen bypass choline chloride for cows. Due to its very effective rumen protection, Excential Rumenpass CH ensures the highest amount of choline bioavailable for the cow.
During the start of a lactation, dairy cows enter a stage of negative energy balance. The reason behind is that energy output for milk production is higher than the energy intake from the consumed feed. Body reserves in the form of fat will be mobilized and this may lead to fatty liver and (subclinical) ketosis, which can result to very high costs.
Choline is known for its positive effects in case of ketosis. Crucial point is that choline needs to be available on intestinal level. Unprotected choline will be broken down in the rumen and will lose its effect. To overcome degradation in the rumen the choline needs to be protected (rumen bypass).
Rumen protection as such does not mean that the product is effective. Some products in the market are overprotected. The protection can be so strong that the choline is not released in the intestine. Other products are underprotected, meaning that the protection layer is broken down in the rumen and all choline is lost before it even reaches the intestine.
Orffa has developed Excential Rumenpass CH. This product has the perfect balance between rumen protection and intestinal digestibility, which results in the highest amount of choline available for the cow. Please check the publications below for the latest information.
Related Publications
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Article
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Article
Cetose em vacas de leite e o papel da colina
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Article
Ketosis in dairy cows and the role of choline
International Dairy Topics, January 2014
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Article
Effects of rumen protected choline chloride in dairy cows
Jahrestagung der BAT e.V., October 2013
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Article
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Arno van der Aa and Ramakanta Nayak: Delivering established Innovation within animal nutrition & health market combined with a regional tailored approach
eFeedlink, June 2025
Orffa was established over 50 years ago in North-West Europe, at that time already involved in bringing feed additives to market. Over the years, Orffa expanded in its geographical footprint and started to develop and produce specialty feed additives under its own scope and brand name (“Excentials”). Today, Orffa is active in 90+countries. With a clear regional focus, Orffa can service customers with clear customer focus and0e1d35c8-dda2-46c9-8fa1-b738e8fe1649,75668571-875d-4f33-ae60-582bef77df3b,17239826-48f3-451a-9339-7f1389a1d014, e110f00c-e8de-473c-9311-14c7516c6d0a,6a8415ac-c669-4253-a1a7-ba3d5d7872f1,96b0fedb-74b2-4bf5-87ea-3759b48f4217,0488eb96-b937-4f4b-af7d-6736cd38203f,c38f462e-3e5d-4b86-88f4-16cd48c1a5c0,726155a2-e68c-47a8-a221-7a7ff83773e5 d5dfc6bf-ef9b-42f9-af03-17d62a7efa15,e378b528-b958-4a79-b665-eec6a6693a0b,f7d1c2d5-868d-4aff-bf19-1d979e6ce19f,ebda3477-8509-4dbf-918f-785d6f3e92e9,46dfa1b8-3547-4dc1-8395-d7aa6000c08c,3ff73809-7eea-46f5-9499-ebb856ce35ee,b1593db0-31fe-429f-8cd8-ac5a04ed6642,af393e79-b464-4d5d-8120-a76ce682e7fa,edb4ae6c-e790-4e64-9a55-f872c9e6281c,78140030-b3fc-42e6-8fc3-12f24cd6bd68,9cee69fe-546c-411f-b0ce-2842b45b0603,6893e924-8850-47af-aacd-0a9711b588b3,11174f0e-2503-4011-83f9-3d4c7ff91e3d,e9f930e8-798d-4162-8651-998a3b419386,9977cb92-e5fb-4009-a0d4-52ad667ee27c,6858c51e-bc53-4662-b2c9-1361d9a69159,cd131ada-1cc6-4f9b-8145-60f02e12d702,65641857-761a-48cb-801a-57fef1773bb4,a74be6cb-c272-4fe0-8f7f-0e2af6489ad8,345e02f1-33f5-44e8-8588-ebe7c35cfc32,4562b032-34f4-4bbd-a3ec-e16f7a95b174,9b135f00-2a93-4b04-a2bd-a4a32d974b99,a9a316bc-d0a9-402c-8915-580a0cca8bce,c23d9c43-ba43-4b25-9c25-22c902b7cbe0,de65b078-0e74-4c6e-9ec9-096759a42d06,33e5246e-f50a-40ff-8bce-7247e27f1855,4f84596e-9db1-4a38-b54c-cbac2272d0f1,9ad7b5ee-7e98-47e1-a721-486a0c25e18a,ad1e1695-80db-4193-ae15-20a531dd0997,2e6055b2-57bf-47ba-8156-bc9c8e829ede 677dbd38-0773-44d8-aa65-d2106819dd4e ,articled5dfc6bf-ef9b-42f9-af03-17d62a7efa15,e378b528-b958-4a79-b665-eec6a6693a0b,f7d1c2d5-868d-4aff-bf19-1d979e6ce19f,ebda3477-8509-4dbf-918f-785d6f3e92e9,46dfa1b8-3547-4dc1-8395-d7aa6000c08c,3ff73809-7eea-46f5-9499-ebb856ce35ee,b1593db0-31fe-429f-8cd8-ac5a04ed6642,af393e79-b464-4d5d-8120-a76ce682e7fa,edb4ae6c-e790-4e64-9a55-f872c9e6281c,78140030-b3fc-42e6-8fc3-12f24cd6bd68,9cee69fe-546c-411f-b0ce-2842b45b0603,6893e924-8850-47af-aacd-0a9711b588b3,11174f0e-2503-4011-83f9-3d4c7ff91e3d,e9f930e8-798d-4162-8651-998a3b419386,9977cb92-e5fb-4009-a0d4-52ad667ee27c,6858c51e-bc53-4662-b2c9-1361d9a69159,cd131ada-1cc6-4f9b-8145-60f02e12d702,65641857-761a-48cb-801a-57fef1773bb4,a74be6cb-c272-4fe0-8f7f-0e2af6489ad8,345e02f1-33f5-44e8-8588-ebe7c35cfc32,4562b032-34f4-4bbd-a3ec-e16f7a95b174,9b135f00-2a93-4b04-a2bd-a4a32d974b99,a9a316bc-d0a9-402c-8915-580a0cca8bce,c23d9c43-ba43-4b25-9c25-22c902b7cbe0,de65b078-0e74-4c6e-9ec9-096759a42d06,33e5246e-f50a-40ff-8bce-7247e27f1855,4f84596e-9db1-4a38-b54c-cbac2272d0f1,9ad7b5ee-7e98-47e1-a721-486a0c25e18a,ad1e1695-80db-4193-ae15-20a531dd0997,2e6055b2-57bf-47ba-8156-bc9c8e829ede202506272025 -
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Understanding the role of protected choline to reduce ketosis and support transition cows
Livestock Technology, January 2023
The onset of lactation is a critical period in high performing dairy, and good management during the transition period is important to prepare the cow for a productive lactation. Nutritional adaptations can help for a good start.75668571-875d-4f33-ae60-582bef77df3b, 0488eb96-b937-4f4b-af7d-6736cd38203f 345e02f1-33f5-44e8-8588-ebe7c35cfc32 677dbd38-0773-44d8-aa65-d2106819dd4e ,article345e02f1-33f5-44e8-8588-ebe7c35cfc32202301052023 -
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Reducing problems in transition cows using protected choline
Dairy Mail, October 2019
The onset of lactation is a critical period in a highperforming dairy cow and good management during the transition period is very important to prepare the cow for a productive lactation.75668571-875d-4f33-ae60-582bef77df3b, 0488eb96-b937-4f4b-af7d-6736cd38203f 345e02f1-33f5-44e8-8588-ebe7c35cfc32 677dbd38-0773-44d8-aa65-d2106819dd4e ,article345e02f1-33f5-44e8-8588-ebe7c35cfc32201910172019 -
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Cetose em vacas de leite e o papel da colina
Artigo Técnico, April 2014
No início da lactação, as vacas leiteiras passam por uma fase caracterizada pelo balanço energético negativo.75668571-875d-4f33-ae60-582bef77df3b, 0488eb96-b937-4f4b-af7d-6736cd38203f 345e02f1-33f5-44e8-8588-ebe7c35cfc32 23edf637-367f-4597-9a31-3adb701a18a7 ,article345e02f1-33f5-44e8-8588-ebe7c35cfc32201404012014 -
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Ketosis in dairy cows and the role of choline
International Dairy Topics, January 2014
Supplementation of choline in a rumen protected and intestinal available form can be a practical tool for a dairy farmer as part of a total nutritional strategy to lower subclinical ketosis.75668571-875d-4f33-ae60-582bef77df3b, 0488eb96-b937-4f4b-af7d-6736cd38203f 345e02f1-33f5-44e8-8588-ebe7c35cfc32 677dbd38-0773-44d8-aa65-d2106819dd4e ,article345e02f1-33f5-44e8-8588-ebe7c35cfc32201401012014 -
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Effects of rumen protected choline chloride in dairy cows
Jahrestagung der BAT e.V., October 2013
Choline plays an important role in transportation of non-esterified fatty acids regarding metabolism by the liver and a shortage results in a disturbed fatty acid metabolism with the consequence of ketosis and fatty liver syndrome in dairy cattle.75668571-875d-4f33-ae60-582bef77df3b, 0488eb96-b937-4f4b-af7d-6736cd38203f 345e02f1-33f5-44e8-8588-ebe7c35cfc32 677dbd38-0773-44d8-aa65-d2106819dd4e ,article345e02f1-33f5-44e8-8588-ebe7c35cfc32201310012013