Several problems should be paid attention to when feeding urea

Urea has high protein equivalent (46% nitrogen content, 287.5% crude protein), low price, certain growth and yield increase effect on ruminants, and significant breeding benefits in the breeding of dairy cows, beef cattle and sheep. It has been widely used, but improper feeding can not only achieve the purpose of increasing efficiency, but also cause poisoning of ruminant livestock and cause certain economic losses. The use of urea should pay attention to the following aspects:

1. The amount of urea should not exceed 1/3 of the total nitrogen content of the diet, that is, the dosage in the concentrate supplement is controlled within 0.5%, otherwise the poisoning phenomenon is likely to occur; the yak and the lamb are hanged because of the yak and the lamb. The digestive system has not yet fully developed, and the decomposition of urea and the synthesis of nitrogen are not yet complete.

2, should not be fed with water, so as not to enter the real stomach. It should be mixed with other feed raw material additives in a certain proportion to prepare the concentrate supplement before feeding.

3. Increasing the energy concentration of feed, that is, the proportion of energy feed such as corn and sorghum is appropriately increased or added to meet the nutrient conditions required for rumen microbial reproduction, and the ability of microorganisms to synthesize nitrogen is improved.

4. Add a urease inhibitor. The chemical name of the urinary enzyme inhibitor is ethoxylated hydrazide, whose function is to reduce the decomposition rate of urea and to make the decomposition of urea consistent with the synthesis of nitrogen.

5. Made of corn gelatinized urea. Under high temperature and high pressure conditions, corn starch and urea molecules are fully fused. After amylation, the urea molecules are coated, which reduces the decomposition of urea in the rumen and the reproduction of rumen microorganisms. Growth provides energy. This will greatly increase the utilization of urea in ruminant livestock. Due to the high cost of this method (at least 200,000 gelatinization equipment), it is greatly restricted in the breeding of ruminant livestock in rural areas.

6. Adopt a method of increasing the number of microorganisms to enhance the synthesis of microorganisms and improve the utilization of urea.




Author: Liu Tong
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