Laying Performance, Serum Lipoproteins, Cholesterol and Triglyceride of Hens as influenced by Dietary Fat Sources

Celebi, S. and Utlu, N. 2004. Laying performance, serum lipoproteins, cholesterol and triglyceride of hens as influenced by dietary fat sources. J. Appl. Anim. Res., 25: 121–124. There were five dietary treatment groups. Control group was fed with basal diet without added fat (CO), experimental groups were fed on a diet supplemented with 2% of either of tallow (TO), a mixture of tallow and flaxseed oil (1:1 w/w) (MTFO), sunflower oil (SO) and flaxseed oil (FO). Fat supplementation improved egg production (P<0.01), FO and SO supplementation increased serum HDL and decreased total cholesterol (TCOL), low density lipoprotein cholesterol (LDL-C), very low density lipoprotein cholesterol (VLDL-C) and triglyceride (TG). These results suggest that dietary FO and SO may be a valuable ingredient to layers for reducing serum TG and increasing serum HDL-C without any adverse effect.