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Dietary crude protein (CP) reduction is considered a useful strategy to minimize cow N excretion and NH 3 and N 2 O emissions. The aim of the current work was to relate dietary CP modification to whole-animal N balance and subsequent NH 3 and N 2 O concentrations on a tie-stall barn floor. The effect of temperature on NH 3 and N 2 O concentration was...
Dairy farm activities contribute to environmental pollution through the surplus N and P that they produce. Optimization of animal feeding and management has been described as a key strategy for decreasing N and P excretion in manure. Sixty-four commercial dairy farms were studied to assess the efficiency of N and P use in lactating herds and to identify dietary and management factors that may contribute...
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