1. The amount of urea should not exceed 1/3 of the total nitrogen requirement, and should not exceed 1% of the dry matter of the diet.
2. Because urea has good hygroscopicity, it is easy to be decomposed into ammonia. It can not be fed alone or dissolved in water. It can't drink water for 2 hours after feeding.
3. Urea has poor palatability. It is best to add it to the mixed concentrate to make urea or mineral feed bricks with starch feed, salt and other mineral feeds for cattle to eat and reduce the intake rate.
4. When urea is added to the feed, the bean cake cannot be fed at the same time. Because the urea bean is contained in the raw bean cake, the decomposition of urea is accelerated in the presence of water, causing loss.
5. The total amount of urea used for feeding every day is fed several times, which is beneficial to stabilize the concentration of ammonia in the rumen and avoid waste or poisoning. Although urea is a good protein supplement, it can provide nitrogen to cattle, but it does not provide other nutrients. Therefore, when supplementing proteins with urea, it is necessary to supplement energy, minerals and vitamins at the same time. In order to receive the desired effect.
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