Incorporation of different types of n-3 fatty acids into tissue lipids of poultry
1992
Chanmugam, P. | Boudreau, M. | Boutte, T. | Park, R.S. | Hebert, J. | Berrio, L. | Hwang, D.H.
The objective of the present study was to compare the incorporation of different types of n-3 polyunsaturated fatty adds into thigh muscle lipids of poultry. Nine groups of broiler chicks were fed diets supplemented with three levels (1.0, 2.5, and 5.0%) of either corn, linseed, or menhaden oil. Birds supplemented with linseed oil, rich in linolenic acid (C(18:3n-3)), had significantly higher levels of n-3 fatty acids and higher n-3:n-6 ratios than those supplemented with the same level of menhaden oil, primarily due to an accumulation of C(18:3n-3). Levels of eicosapentaenoic acid (C(20:5n-3)) were increased (P < .05), compared with the controls fed the same level of corn oil, in the groups fed the two higher levels of linseed oil, and in all the groups fed menhaden oil. Linolenic add is less susceptible to auto-oxidation, and is less likely to impart an off-flavor to the muscle. Thus, if it is desirable to increase the n-3:n-6 ratio in poultry, seed meals or oils with a high content of C(18:3n-3) could be used in poultry feeds.
显示更多 [+] 显示较少 [-]