Least-squares means and standard error for traits measured are pre-
sented in Table 2.


Reproduction
 There were highly significant differences for the F1 dam breeds (recip-
rocals combined) for pregnancy, with no differences observed for sur-
vival rate of calves. Pregnancy rates were 91.2% for AB + BA, 81.2%
for AC + CA, and 89.4% for BC + CB Fi dam breeds. Pregnancy rates
for the Brahman cross dams were similar, and higher than those of the
Angus-Charolais crosses.
 No significant differences in pregnancy or calf survival were observed
among the reciprocals (Table 1). The only reciprocals showing any de-
gree of possible maternal superiority in the performance of their Fi
female progeny were the Charolais x Brahman (CB) at 92.0% over the
Brahman x Charolais (BC) at 86.9% (Table 2). The reciprocals,
whether CB (Charolais bull x Brahman cow) or BC (Brahman bull x
Charolais cow), should be the same genetically. The possibility exists that
differences could be due to the maternal environment provided by the
Brahman to their F, female progeny in utero or during the period from
birth to weaning.


Production Traits
 There were no differences observed for weaning age of calves among
the Fi dams reciprocalss combined). This indicates that all F1 dams that
conceived did so during the same time period (Table 1). There were also
no significant differences among the F, reciprocals for weaning age of
their calves.
 Weaning weights and 205-day weights of calves from the three Fi
crossbred combinations reciprocalss combined) were significantly differ-
ent (Table 1). The weights for calves from Fi AB + BA and F1 BC+ CB
cows were similar and were higher (P 0.01) than calves produced by Fi
AC +CA cows (Table 2).
 Even though variations were real between breed combinations, there
were no observed differences between F1 breed reciprocals (Table 2).
There was, however, a tendency for F1 dams produced from Brahman
dams to wean heavier calves, but when adjusted for calf age, these small
variations were minimized. Turner et al. (8) reported no differences in
the weaning weight of calves between F, Angus x Brahman vs Brahman
x Angus reciprocal dams in Louisiana, but they did suggest a tendency
for F, dams from Brahman cows to be superior. Results from the Char-
olais-Angus combinations (Table 2) showed that F, cows from Charolais