R. Fontanillas et al., EFFECT OF FEEDING HIGHLY CIS-MONOUNSATURATED, TRANS, OR N-3 FATS ON LIPID-COMPOSITION OF MUSCLE AND ADIPOSE-TISSUE OF PIGS, Journal of agricultural and food chemistry, 45(8), 1997, pp. 3070-3075
The effects of feeding various fat sources on contents of trans fatty
acids (TFA) and n-3 polyunsaturated fatty acids (n-3 PUFA) and on chol
esterol incorporation in muscle and adipose pork tissue were studied.
Thirty castrated pigs, divided into three experimental groups receivin
g the same basal diet with a different 4% supplement of fat-hydrogenat
ed oil (H), linseed oil (L), and pomace oil (O)-were slaughtered at 95
+/- 2.16 kg. No differences were observed in production performance a
nd in carcass and meat characteristics. The pattern of dietary fatty a
cids was reflected in muscle and adipose tissues. In backfat, animals
fed H had the highest TFA contents. Animals fed O had the highest MUFA
contents. Animals fed L had the highest levels of n-3, greater conten
ts of C20:5n-3 (eicosapentaenoic acid) and C22:5n-3, and lower levels
of arachidonic acid (C20:4n-6). Dietary treatment did not affect chole
sterol concentration.