Abstract:
In this research has been taking several samples of different companies to
feed the cattle used in the Sudan and the feed has the addition of urea so
as to improve the percentage of protein in the feed, and determinate the
percentage of urea spectrophotometer and I've found that some of these
feed containing a high percentage of urea, which may only lead poisoning
animal and then his death and this matter due to the censorship of good
manufacturing these feeds and even after manufacturing
