INFLUENCE OF DIFFERENT LEVELS OF SUNFLOWER OIL IN DIETS OF LAMBS ON ABSORPTION OF CHOLESTEROL IN PORTAL SYSTEMS
Abstract
The intensity of cholesterol absorption in the
portal system of lambs was investigated in connection with
different levels of sunflower oil in the diets. Complex catheterization
of the portal vein and carotid artery made it possible
to study the transport of lipid metabolites from the intestinal
wall into the portal system. Besides, the volumetric rate of the
blood flow in the portal vein was also measured. The lambs
diet was designed in accordance with recommended feeding
standards for sheep, taking into account liveweight and daily
gain. The difference in feeding of lambs of different groups
during all stages of the experiment consisted in the fact that
the lambs in groups I, II and III had a diet containing 3%, 5%
and 7% fat (dry-matter basis), respectively. An increase in the
level of fat in the lambs diet up to 7% by adding sunflower oil
significantly affects the transport of cholesterol into the portal
system.
portal system of lambs was investigated in connection with
different levels of sunflower oil in the diets. Complex catheterization
of the portal vein and carotid artery made it possible
to study the transport of lipid metabolites from the intestinal
wall into the portal system. Besides, the volumetric rate of the
blood flow in the portal vein was also measured. The lambs
diet was designed in accordance with recommended feeding
standards for sheep, taking into account liveweight and daily
gain. The difference in feeding of lambs of different groups
during all stages of the experiment consisted in the fact that
the lambs in groups I, II and III had a diet containing 3%, 5%
and 7% fat (dry-matter basis), respectively. An increase in the
level of fat in the lambs diet up to 7% by adding sunflower oil
significantly affects the transport of cholesterol into the portal
system.
About the Author
Э. Гусейнова
Гянджинский региональный научный центр Азербайджанской НАН
Russian Federation
Russian Federation
References
1. Алиев А.А. Обмен веществ у жвачных живот- ных. М., 1997. 419 с.
2. Алиев А.А. Экспериментальная хирургия сель- скохозяйственных животных. М.: НИЧ Инже- нер, 1998. 445 с.
3. Искендеров Б.Ф., Фарзалиев В.И. Внешнесекре- торная функция печени и поджелудочной желе- зы у бычков и буйволят при включении в рацион жиров и селена // Тр. ВНИИФБиП., 1985. T. 30. С. 54-58.
4. Кондрохин И.П., Курилов А.Г., Малахов А.Г. и др. Клиническая лабораторная диагностика в вете- ринарии. М.: Агропромиздат, 1985. 105 с.
5. Eoin Faty, Shankar Subramaniam, H. Alex Brown et all. A comprehensive classification system for lipids // J. of lipid research( USA), 2005. V. 46. P. 839-862.
6. Russels D. W. The enzymes, regulation and genetics of bile acid synthesis //Annu. Rew. Biochem. 2003. P. 839-862.
7. Changas G.S. and Steffens J.C. UDP glucose: fatty acid transglucosylation and transacylation in triacylglucose biosynthesis //Proc. Natl. Acad. Sci.(USA), 1993. V. 90. P. 9911-9915.
8. Dawson R.M.C. and Hemington N. Digestion of grass lipids and pigments in the sheep rumen // Br. J. Nutr., 1974. V. 32. P. 327-340.
9. Garton G.A. Fatty acid metabolism in ruminants./ Biochemistry of Lipids II. ed.Goodwin W. Baltimore: University Park Press, 1997. V. 14. P. 337-370.
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