Some beef breed associations provide a scoring system for the evaluation of teat size and udder suspension in cows. However, the relationship of teat and udder scores with milk production and calf growth is not clear. In this Univ. of Georgia study, teat and udder data from 9,418 first-calf Gelbvieh cows and growth records on 19,119 calves born in their first three calf crops were used to determine the relationship of teat and udder scores with calf growth traits and maternal genetic growth effects. Teat size score (T) ranged from 0 (very large) to 50 (very small) and udder suspensory score (S) ranged from 0 (very pendulous) to 50 (very tight). Birth weights (BW), weaning weights, and yearling weights of the calves were used to calculate preweaning gain (WG) and postweaning gain (YG). Heritability estimates of T and S were moderate (0.27 and 0.22, respectively). The genetic correlation between teat and suspensory score was 0.95, suggesting that the same genes may control both traits. The genetic correlations of T and S with direct BW, WG, and YG and with maternal BW and WG suggested that cows with smaller teats and tighter udders produced less milk and raised calves that had higher genetic growth potential for preweaning gain. The data also indicated that cows with extremely large teats or pendulous udders may produce more milk, but that the calf may have trouble accessing it, resulting in reduced preweaning gain. Conversely, with extremely small teats or tight udders, lower amounts of milk would be produced and there may be a problem producing enough milk to meet the calf’s genetic potential for preweaning gain. Consequently, the authors concluded that to obtain a balance between increased milk production and accessibility of the milk to the nursing calf to maximize his growth performance, it may be more beneficial for producers to select animals that have intermediate breeding values for teat and suspensory score (Sapp et al. 2004. J. Anim. Sci. 82:2277).