- Volume 27 Issue 2
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Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Characteristics of Digestion, Microbial Protein Synthesis and Digestible Energy in Steers Fed Diets with Different Starch:ADF Ratios
- Lopez-Soto, M.A. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Rivera-Mendez, C.R. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Aguilar-Hernandez, J.A. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Barreras, A. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Calderon-Cortes, J.F. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Plascencia, A. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Davila-Ramos, H. (Veterinary School, University Autonomous of Sinaloa) ;
- Estrada-Angulo, A. (Veterinary School, University Autonomous of Sinaloa) ;
- Valdes-Garcia, Y.S. (Academic Unit of Veterinary and Animal Science, University Autonomous of Nayarit)
- Received : 2013.07.07
- Accepted : 2013.09.01
- Published : 2014.02.01
As a result of the cost of grains, the replacement of grains by co-products (i.e. DDGS) in feedlot diets is a common practice. This change produces diets that contain a lower amount of starch and greater amount of fibre. Hypothetically, combining feed grade urea (U) with slow release urea (Optigen) in this type of diet should elicit a better synchrony between starch (high-rate of digestion) and fibre (low-rate of digestion) promoting a better microbial protein synthesis and ruminal digestion with increasing the digestible energy of the diet. Four cannulated Holstein steers (
Slow-release Urea;Finishing Diets;Steers;Digestion;Microbial Nitrogen
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