Treatments were continuous ventral ruminal infusion of water, 4.1 g of feed urea/kg of dry matter intake, and 8.5 g of feed urea/kg of dry matter intake.
The daily ration was a target herbage dry matter (DM) intake of 0.02 of live weight per heifer above a residual or post-grazing herbage mass of 900 kg DM ha-1.
Intake of dry matter increased as intake of CFO increased (23.0, 24.4, and 25.4 kg/d).
There were no significant treatment effects on milk yield, milk composition, and yield of milk constituents, and the dry matter (DM) intake of the GM variety was not significantly different from the 2 commercial varieties.
Effects of supplemental iron sulfate, and the impact of substitution of two-thirds of the WCS with CrP, on milk yield and dry matter (DM) intake of cows fed these diets containing relatively high levels of gossypol were determined.
This represent a difference in daily dry matter feed intake of 1.17 kg more feed intake for the cattle with inferior feed efficiency to achieve the same performance as the steers with superior feed efficiency without differences on subcutaneous fat deposition, as a result of the adjustment for backfat thickness in the RFI prediction model.
The levels of dry matter intake were 1.2% of BW, 1.8% of BW and ad libitum, with target orts of 5%.
The levels of dry matter intake were 1.2% of BW, 1.8% of BW, and ad libitum to target orts equal to 5% of the total amount that was fed.
Milk yield (45.8 kg/d) and efficiency of production (1.64 kg of milk/kg of dry matter intake) were similar between treatments.
Ruminal digestibilities of starch and organic matter interacted quadratically with level of intake.
This isn't a matter of energy (organisms' energy intake and output must be balanced, or they'd burn up), but of entropy, the measure of atomic disorder.
