Ammonia emissions and performance of backgrounding and finishing beef feedlot cattle fed barley-based diets varying in dietary crude protein concentration and rumen degradability12

2013 ◽  
Vol 91 (5) ◽  
pp. 2278-2294 ◽  
Author(s):  
K. M. Koenig ◽  
S. M. McGinn ◽  
K. A. Beauchemin
2005 ◽  
Vol 83 (3) ◽  
pp. 722-731 ◽  
Author(s):  
N. A. Cole ◽  
R. N. Clark ◽  
R. W. Todd ◽  
C. R. Richardson ◽  
A. Gueye ◽  
...  

2009 ◽  
Vol 2009 ◽  
pp. 78-78
Author(s):  
T Yan ◽  
F J Young ◽  
D C Patterson ◽  
C S Mayne

The European Union Nitrates Directives set a limit on the amount (170 kg/ha) of manure nitrogen (N, = faecal N + urine N) that may be applied to land each year. This limit has very significant implications for stocking rates on intensive livestock farms. Consequently, there is increasing interest in developing mitigation strategies to reduce N output in faeces and urine in animal production systems. The objectives of the present study were to evaluate the effects of dietary crude protein (CP) concentration on the efficiency of N utilisation in lactating dairy cows.


2003 ◽  
Author(s):  
Syamalakumar Pandrangi ◽  
David B. Parker ◽  
L. Wayne Greene ◽  
Lal K. Almas ◽  
Marty B. Rhoades ◽  
...  

Author(s):  
Leodan T Rodríguez-Ortega ◽  
Alejandro Rodríguez-Ortega ◽  
Fredy Mera-Zuñiga ◽  
Arturo Pro-Martínez ◽  
Filogonio J Hernández-Guzmán ◽  
...  

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