The sire breed × time of weaning × muscle type
interactions for fatty acid composition in finishing beef
steers are shown in Table 4.
SFA. Percent total SFA was similar between sire
breeds and weaning dates; however, the STN had a
smaller (35.76 vs. 43.94; P < 0.01) percent SFA compared
with the LM. Specifically, capric acid (10:0), lauric
acid (12:0), palmitic acid (16:0), and stearic acid
(18:0) were less (P < 0.01) in the STN than the LM. In
contrast, percent pentadecanoic acid (15:0) was greater
(P = 0.01) in the STN than the LM. There was a sire
breed × time of weaning × muscle type interaction for
myristic acid (14:0). The STN from LW Angus had the
greatest (3.07; P = 0.04) percent 14:0 and the LM from
NW Charolais had the least (1.85; P = 0.04) percent
14:0, with all other treatment groups being intermediate
and similar.