NE + MP ADG Calculator

About this calculator

This calculator predicts ADG from both net energy and metabolizable protein. Whichever is lower limits the gain — that's the predicted ADG. Following NASEM 2016 beef cattle nutrient requirements.

Voice — Animal & Energy

• in weight 800 · out weight 1650
• DMI 27 · NEm 95 · NEg 65
• AFSBW 1054 (target SBW at 28% EBF)
• ration cost 300

Voice — Diet Protein

• CP 13.5 (% of DM)
• UIP 35 (% of CP — bypass / RUP)
• TDN 78 (% of DM — drives microbial CP)

Cattle class

• large frame steer · medium frame steer
• large frame heifer · medium frame heifer
• Holstein

Other

• reset — return all inputs to defaults
• stop — turn off the mic

Math reference

NE side: NEMR = (BW/2.205)^0.75 × 0.077. RE = (DMI − NEm intake) × NEg/100. SWG = 13.91·RE^0.9116·EQSBW^−0.6837 kg/d. EQSBW scales actual SBW by 1054/AFSBW.

MP side: MCP = 0.13 × TDN intake. MP supply = 0.64·MCP + 0.80·UIP. MP maintenance = 3.8·SBW^0.75(kg) g/d. NPg = SWG·{268 − 29.4·(RE/SWG)} g/d. MPg required = NPg / 0.492. MP-allowable SWG is solved iteratively from (MP supply − MP maint).