Net energy requirement
—Final weight: 478 kg A B
—Weight, kg 227 408
—NEm, Mcal/d 4.51 7.00
—Final weight: 667 kg C  D
—Weight, kg 324 583
—NEm, Mcal/d 5.89 9.15
—NEg, Mcal/d
—0.68 kg/d 2.14 3.32
—1.59 kg/d 5.42 8.42
48%
48%
87%
87%
Animals A and C have about 48% of mature weight whereas animals B and D have about 87% of mature weight, therefore, their composition of the gain is similar and require similar amount of energy to gain a 1 kg per day.