Biomaterial Database

Effect of beta, beta'-tetramethyl-substituted hexadecanedioic acid (MEDICA 16) on laying hen performance and egg yolk lipid composition. 1992

R G Elkin, and J C Rogler, and H D Lee, and B A Watkins

Department of Animal Sciences, Purdue University, West Lafayette, Indiana 47907.

1. beta, beta'-tetramethyl-substituted hexadecanedioic acid (MEDICA 16), an inhibitor of hepatic cholesterogenesis and lipogenesis in rats, was orally administered to 24-week-old White Leghorn hens for a period of 16 d. Hens were fed maize-soya-bean meal diets containing 0, 1.5, or 3.0 g MEDICA 16/kg. 2. Although MEDICA 16 did not affect egg weight, yolk weight, egg cholesterol content, or the efficiency of food utilisation, egg production was significantly reduced in birds fed 3.0 g MEDICA 16/kg compared to those fed the other two diets. 3. Total yolk monounsaturated fatty acids were significantly higher in eggs of hens fed both inclusion rates of MEDICA 16 compared to those of the control birds. In contrast, egg yolk total polyunsaturated fatty acid content and the ratio of polyunsaturated to saturated fatty acids were both inversely related to the dietary content of MEDICA 16. 4. These results suggest that MEDICA 16 primarily altered hepatic fatty acid metabolism, but not cholesterol synthesis, in laying hens.

UI	MeSH Term	Description	Entries
D010058	Oviposition	The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.	Larviposition,Larvipositions,Ovipositions
D010169	Palmitic Acids	A group of 16-carbon fatty acids that contain no double bonds.	Acids, Palmitic
D002645	Chickens	Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.	Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D004530	Egg Yolk	Cytoplasm stored in an egg that contains nutritional reserves for the developing embryo. It is rich in polysaccharides, lipids, and proteins.	Egg Yolks,Yolk, Egg,Yolks, Egg
D005227	Fatty Acids	Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed)	Aliphatic Acid,Esterified Fatty Acid,Fatty Acid,Fatty Acids, Esterified,Fatty Acids, Saturated,Saturated Fatty Acid,Aliphatic Acids,Acid, Aliphatic,Acid, Esterified Fatty,Acid, Saturated Fatty,Esterified Fatty Acids,Fatty Acid, Esterified,Fatty Acid, Saturated,Saturated Fatty Acids
D005229	Fatty Acids, Monounsaturated	Fatty acids which are unsaturated in only one position.	Monounsaturated Fatty Acid,Acid, Monounsaturated Fatty,Acids, Monounsaturated Fatty,Fatty Acid, Monounsaturated,Monounsaturated Fatty Acids
D005231	Fatty Acids, Unsaturated	FATTY ACIDS in which the carbon chain contains one or more double or triple carbon-carbon bonds.	Fatty Acids, Polyunsaturated,Polyunsaturated Fatty Acid,Unsaturated Fatty Acid,Polyunsaturated Fatty Acids,Acid, Polyunsaturated Fatty,Acid, Unsaturated Fatty,Acids, Polyunsaturated Fatty,Acids, Unsaturated Fatty,Fatty Acid, Polyunsaturated,Fatty Acid, Unsaturated,Unsaturated Fatty Acids
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000960	Hypolipidemic Agents	Substances that lower the levels of certain LIPIDS in the BLOOD. They are used to treat HYPERLIPIDEMIAS.	Antihyperlipidemic,Antilipemic,Antilipemic Agents,Antilipemic Drug,Hypolipidemic Agent,Hypolipidemic Drug,Antihyperlipemics,Antihyperlipidemics,Antilipemic Drugs,Antilipemics,Hypolipidemic Drugs,Agent, Hypolipidemic,Agents, Antilipemic,Agents, Hypolipidemic,Drug, Antilipemic,Drug, Hypolipidemic,Drugs, Antilipemic,Drugs, Hypolipidemic