The objective of this study was to compare 3-breed rotational crossbred calves sired by Holstein, Jersey, Montbéliarde, Normande, Viking Red, and Limousin bulls with Holstein calves fed a high milk allowance for growth, milk consumption, health scores, and profitability in an automated group feeding system. Breed groups were Holstein (n = 16), crossbreds of Montbéliarde, Viking Red and Holstein (n = 24), crossbreds of Jersey, Normande, and Viking Red (n = 6), and Limousin crossbred beef x dairy (n = 45) calves. Calves were randomly assigned within breed to one of two treatments from September 2019 to June 2020 at the University of Minnesota West Central Research and Outreach Center in Morris, MN. The 5 breed groups were balanced across the two treatment groups. Treatment groups were fed 8 L/d (8L) or ad libitum (AL) milk allowance, and calves were introduced to the automated feeder at d 5 and were weaned at 56 d. Milk feeding behaviors (drinking speeds) were collected from the automatic feeding system and analyzed by feeding and breed groups. Body weights were recorded at birth and weekly through weaning. Health scores of calves were recorded twice/wk. Variables included in the statistical model for analyses were fixed effects of birthweight, season of birth, breed group, and treatment group. Calves fed AL had a greater weaning weight (P = 0.001; 106.4 kg versus 91.4 kg) and greater (P = 0.001) average daily gain (ADG; 1.11 kg/d versus 0.87 kg/d) than calves fed 8L, respectively. The calves fed AL (1,064 ml/min) had a slower drinking speed (P = 0.01) than calves fed 8L (1,467 ml/min). Most breed groups were not different for weaning weight or ADG across the 56 d. Daily milk consumption per calf was lower (P = 0.009) for Limousin crossbred calves compared with Holstein and crossbred dairy calves. As expected, AL calves had higher (P = 0.001) milk cost ($189.52) than the 8L calves ($140.71). The average cost per kg of gain was similar for calves fed 8L ($2.89/kg) compared to AL ($3.00/kg) calves. Overall, the Limousin crossbred calves had the least milk cost ($152.75) compared with Holstein ($175.67) calves and Montbéliarde, Viking Red and Holstein crossbred calves ($177.13). The results from this study found that although feeding calves AL resulted in greater milk consumption and higher cost than 8L calves, there may be an economic advantage with costs per kg of gain to feeding calves ad libitum if increased growth rates are realized.