What is your information about slow release urea product? Do you use this product for your animals?
Slow release urea
Urea as a source of non-protein nitrogen (NPN) contains 45% nitrogen and is used as a degradable protein in the diet of dairy cows.
Due to the presence of rumen microbes and the ability to produce effective enzymes in cellulose digestion and nitrogen utilization, ruminants have the possibility of using urea in their diet as a cheap substitute for protein.
The fed urea is hydrolyzed quickly at the beginning of entering the rumen and causes the rumen ammonia concentration to peak in the first hours after consuming urea
Slow release urea is produced in three types of powder, pellets and granules in Iran
Methods for checking the slow release of urea
There are several methods that can check the slow release of these products in a short period of time.
In order to make microbial protein and increase its efficiency, ammonia must be released in parallel with the digestion of carbohydrates in the rumen (ammonia production and availability of carbohydrates in the rumen at the same time), but rumen decomposition of carbohydrates is a much slower process than proteins. As a solution, it is possible to change urea to control the rate of its release and conversion to ammonia, so that ammonia release occurs in parallel with carbohydrate digestion in the rumen.
Slow-release urea reduces the rate of ammonia release in the rumen without restricting and destroying urea, so with slow-release urea, ammonia poisoning is reduced and allows more use of these compounds compared to urea.
Some of these methods are briefly introduced here.
In-body method:
like the nylon bag test in the rumen of fistulated animals, which is a very effective method.
Tilley and Terry test method:
In this method, the sample is incubated with rumen juice in the incubator and finally the amount of ammonia nitrogen is measured.
Sometimes, livestock farmers do not bear the costs of such tests due to the staggering costs of providing feed.
The Benefits Of Slow-Release Fertilizers
- Improved efficiency. ...
- Reduced environmental impact. ...
- Long-lasting effects. ...
- Choose a coating material. ...
- Prepare the coating solution. ...
- Apply the coating solution. ...
- Dry and cure the coated urea. ...
- Polymer-coated urea.