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Any of you ever use urea as a nitrogen source?
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<blockquote data-quote="Big D" data-source="post: 75238" data-attributes="member: 1214"><p>Urea is far better suited for the feedlot industry. Although it is and can be used for range cattle. Use in feedlots is pratical because the cattle need carbohydrates to utilize the urea, and since most feedlot rations are high in grain we get great utilization. In Range cattle the urea is usually mixed with molasses so when the cows lick or feed on the supplement they are getting some carbs. The problem with this is you get very inefficient utilization because the carbs are only a small portion of the cows daily feed intake. This has to do with the recycling of ammonia within the animal, beyond my expertise. If you are grazing corn stalks with a lot of grain left in the field you can expect decent results. In feedlot rations the urea should make up no more than 1/3 of the protein to help reduce toxicity. I do not know if this is an advisable rate for range cattle. Once again if they are on pasture that has a lot of grain I wouldn't have a problem. Using urea with high moisture grain can cause problems also. High moisture grain is already high in NPN (non protein nitrogen), most problems in the feedlot will be subclinical, or be seen as low feed intake's and poor performane. </p><p>Urea has been in the past a great product, but with the recent rise in it's cost and the increasing abundance of ddg and other by products, I believe there are far better options, especially with range cattle.</p><p></p><p>Hope this helps!!</p></blockquote><p></p>
[QUOTE="Big D, post: 75238, member: 1214"] Urea is far better suited for the feedlot industry. Although it is and can be used for range cattle. Use in feedlots is pratical because the cattle need carbohydrates to utilize the urea, and since most feedlot rations are high in grain we get great utilization. In Range cattle the urea is usually mixed with molasses so when the cows lick or feed on the supplement they are getting some carbs. The problem with this is you get very inefficient utilization because the carbs are only a small portion of the cows daily feed intake. This has to do with the recycling of ammonia within the animal, beyond my expertise. If you are grazing corn stalks with a lot of grain left in the field you can expect decent results. In feedlot rations the urea should make up no more than 1/3 of the protein to help reduce toxicity. I do not know if this is an advisable rate for range cattle. Once again if they are on pasture that has a lot of grain I wouldn't have a problem. Using urea with high moisture grain can cause problems also. High moisture grain is already high in NPN (non protein nitrogen), most problems in the feedlot will be subclinical, or be seen as low feed intake's and poor performane. Urea has been in the past a great product, but with the recent rise in it's cost and the increasing abundance of ddg and other by products, I believe there are far better options, especially with range cattle. Hope this helps!! [/QUOTE]
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Any of you ever use urea as a nitrogen source?
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