Amino Acid Requirements and Post-Absorptive Metabolism in Cattle: Implications for Ration Formulation
نویسندگان
چکیده
In addition to decreasing feeding costs, improving the efficiency of utilization of N directly addresses the general concern regarding the environmental footprint of animal production. Excretion of N, especially urinary, may become a potential source of water and air pollution, the latter as N2O, a green-house gas, or as small particulate aerosols having a negative effect on air quality [smog; National Research Council (NRC), 2003].
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