## SustaiN

The below workings are provided to support our full article found here. These are subject to changes in milk prices and beef/lamb schedule.

Beef

• 3kg N at average response rate of 15:1 (for hill country) = 45kg DM/ha
• 45kg DM/ha converted into liveweight = 45 ÷ 10kg DM/kgLW (10 is conservative for bull beef, typical for steers) = 4.5kg LW/ha
• Liveweight converted into carcass weight = 4.5kg LW x 0.55 (55% kill out percentage) = 2.5kg CW/ha
• CW x schedule = 2.5 x \$5.00/kg CW = \$12.50/ha

Sheep

• 3kg N at average response rate of 15:1 (for hill country) = 45kg DM/ha
• 45kg DM/ha converted into liveweight = 45 ÷ 10kg DM/kgLW (10 is conservative for lambs) = 4.5kg LW
• Liveweight converted into carcass weight = 4.5kg LW x 0.42 (kill out percentage) = 1.9kg CW
• CW x schedule = 1.9 x \$7.00/kg CW = \$13.30/ha (\$7/kg CW is conservative with current lamb prices of around \$8.30/kg)

Dairy

• 3kg N at average response rate of 12:1 for Dairy farms = 36kg DM/ha
• 36kg DM/ha = 2.4kg MS
• 2.4kg MS at \$6.75/kg = \$16.20/ha
• Therefore, \$16.20/ha extra income