- Volume 29 Issue 12
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Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Performance, Dietary Energetics and Carcass Characteristics of Feedlot Lambs Fed Finishing Diets with Different Starch to Acid Detergent Fiber Ratios
- Estrada-Angulo, A. (Veterinary and Animal Science School, University Autonomous of Sinaloa) ;
- 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) ;
- Castro, B.I. (Veterinary and Animal Science School, University Autonomous of Sinaloa) ;
- Rios, F.G. (Veterinary and Animal Science School, University Autonomous of Sinaloa) ;
- Davila-Ramos, H. (Veterinary and Animal Science School, University Autonomous of Sinaloa) ;
- Barreras, A. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Urias-Estrada, J.D. (Research Institute of Veterinary Sciences, University Autonomous of Baja California) ;
- Zinn, R.A. (Department of Animal Science, University of California) ;
- Plascencia, A. (Research Institute of Veterinary Sciences, University Autonomous of Baja California)
- Received : 2016.01.06
- Accepted : 2016.05.18
- Published : 2016.12.01
Recent findings have shown that microbial nitrogen flow and digestible energy of diets are increased when urea is combined with a slow-release urea (SRU) in diets with a starch to acid detergent fibre ratio (S:F) 4:1. This affect is attributable to enhanced synchrony between ruminal N availability for microbial growth and carbohydrate degradation. To verify the magnitude of this effects on lamb performance, an experiment was conducted to evaluate the effects of combining urea and a SRU in diets containing S:F ratios of 3:1, 4:1, or 5:1 on performance, dietary energetics and carcass characteristics of finishing lambs. For that, 40 Pelibuey
Supported by : PROFAPI-UAS of Mexico
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