Figure 2From: Effect of dietary phosphorus content on milk production and phosphorus excretion in dairy cowsChange in milk yield of cows fed diets containing 0.37, 0.47, or 0.57% of P over a full lactation period. Means for the respective treatments over the entire lactation were 21.5, 20.7, and 22.0 kg/d (P=0.63), respectively, with a treatment by sampling period interaction (P = 0.03). Values are expressed as mean ± SE.Back to article page