The objective of this study was to investigate both energy and protein requirements for the maintenance and growth of indigenous goats, based on data from two separate studies. Goats were weaned at 79 ± 4.4 days of age, with milk and solid diet intake recorded daily. To determine energy maintenance requirements, 32 kids of 4.90 ± 0.302 kg initial body weight (BW) were used. Ten kids were slaughtered at 5.40 ± 0.484 kg BW to estimate initial body composition, with the remaining kids randomly assigned to one of two DM intake levels: ad libitum and restricted-fed (1.2-times maintenance level). Heat production (HP) was calculated as the difference between ingested metabolizable energy (MEI) and retained energy. Net energy requirement for maintenance (NE m ) was estimated as the β 0 parameter of the relationship between HP and MEI [HP = β 0 × exp]. Metabolizable energy required for maintenance (ME m ) was calculated iteratively, as HP = MEI. Efficiency of energy utilization for maintenance (k m ) was calculated as NE m /ME m . The intercept of the linear regression of retained CP on CP intake was used to calculate net protein requirements for maintenance (NP m ). Net energy and protein requirement for gain (NE g and NP g , respectively) were obtained using 26 kids fed ad libitum and randomly slaughtered at 5.40 ± 0.484 kg BW (n = 10), 15.8 ± 0.655 kg BW (n = 10), and 26.3 ± 1.27 kg BW (n = 6). The first derivative of the allometric equation (used to calculate energy and protein contents in empty body weight (EBW)) with respect to EBW yielded estimates of NE g and NP g . A Monte Carlobased method was employed to simulate variation in ME m , NE g , and NP g . This study indicated that the net energy required for maintenance is 310.1 ± 36.7 kJ kg -0.75 EBW, with ME m estimated at 499.1 ± 52.1 kJ kg -0.75 EBW and k m equal to 0.62. This study indicated that 1.246 g CP kg -0.75 EBW is required by indigenous kids weighing from 5 to 25 kg BW to meet their NP m . In addition, indigenous goats require between 186.6 ± 2.97 and 214.3 ± 12.9 g CP, and between 5.39 ± 1.49 and 9.74 ± 2.57 MJ to gain one kilogram of EBW. This study may contribute to future adjustments in feeding system energy and protein recommendations for indigenous kids. de 2 estudos. Os caprinos foram desmamados com 79 ± 4,4 dias de idade. Ingestão de leite e dieta sólida foi tomada diariamente. Utilizou-se 32 cabritos de 4,90 ± 0,302 kg de peso corporal (PC) inicial. Nesse momento, 10 cabritos foram abatidos para estimativa de composição corporal inicial. Os cabritos remanescentes foram distribuídos aleatoriamente em dois níveis de ingestão: ad libitum ou com ingestão de 20% acima do nível de mantença. A produção de calor (C) foi calculada pela diferença da energia metabolizável (IEM) ingerida e energia retida. A energia líquida para manteça (EL m ) foi estimada pelo parâmetro β 0 da relação entre C e IEM [C = β 0 × exp] . A exigência de energia metabolizável para mantença (EM m ) foi calculada quando C = IEM. A eficiência de utilização de energia para...