A note on the effect of different amounts and types of fat on the fatty acid composition of duodenal digesta in sheep
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August Cieszkowski Agricultural University, Department of Animal Nutrition and Feed Management, Wołyńska 33, 60-637 Poznań, Poland
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
Publication date: 2001-11-06
J. Anim. Feed Sci. 2001;10(4):627–632
Three experiments were carried out on four rams of 40±5 kg body weight fitted with rumen and duodenum cannulas in a 4 x 4 Latin square design. The animals were fed a 1200 g daily basal ration consisting of meadow hay and concentrate (60:40) in two equal portions at 08.00 and 18.00 h. The basal diet was supplemented with rape seed oil, hydrogenated rape seed oil or linseed oil in respective experiments in amounts equal to 0, 4, 8 or 10% dry matter of the diet. Duodenal digesta was analyzed for fatty acid content. Fat addition, independent of the amount of vegetable fat, decreased the polyunsaturated fatty acid level but increased that of monounsaturated fatty acids, consequently causing an increase in the sum of poly- and monounsaturated fatty acids in the duodenal digesta.
Comparison of fatty acid composition of bacterial and protozoal fractions in rumen fluid of sheep fed diet supplemented with sunflower, rapeseed and linseed oils
Zora Váradyová, Svetlana Kišidayová, Peter Siroka, Dušan Jalč
Animal Feed Science and Technology