Dietary cholesterol effects on plasma and yolk cholesterol fractions in selected lines of Japanese quail

Poultry Science
S M HammadH L Marks

Abstract

Japanese quail from lines that had been divergently selected for high (HL) or low (LL) plasma total cholesterol and their unselected control line (CL) were fed an all vegetable diet to which 0 or 0.5% crystalline cholesterol were added. Relationships between plasma and yolk cholesterol fractions were examined at 10, 14, and 18 wk of age, which followed 2, 6, and 10 wk consumption of the cholesterol-enriched diet, respectively. Unesterified cholesterol (UC) and cholesteryl esters (CE) in plasma and yolk were analyzed using HPLC. There were no consistent correlations between yolk and plasma for UC, individual CE, total esterified cholesterol (EC), or total cholesterol in the selected lines at ages tested, whether or not 0.5% cholesterol was added to the diet. Cholesterol concentrations in milligrams per gram of yolk and in milligrams per yolk were higher in the HL than the LL at 10 and 14, but not at 18 wk of age. Yolk weights of the HL females increased from 10 to 18 wk of age, whereas those of the LL did not. Cholesterol concentrations in the LL yolks continued to increase over time, however the increases in yolk weight in the HL were not accompanied by proportional increases in cholesterol deposition in the yolk, leading to a ...Continue Reading

Citations

Oct 8, 1999·Developmental and Comparative Immunology·H L LovittH L Marks
Mar 16, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·S M HammadH L Marks
Oct 16, 2004·British Poultry Science·T Balevi, B Coskun
Sep 21, 2011·Journal of Animal Physiology and Animal Nutrition·U SalmaK-H Südekum
Dec 1, 2010·Journal of Animal Physiology and Animal Nutrition·S AfroseH Tsujii
Jun 22, 2010·Journal of the Science of Food and Agriculture·Rahim Aydin, Israfil Dogan
Mar 26, 2003·Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine·S KayaS Erdogan
Oct 2, 2014·Journal of Animal Physiology and Animal Nutrition·G G BotelhoR N Morais
Jan 7, 2004·Journal of Agricultural and Food Chemistry·Jyh-Jye Wang, Tzu-Ming Pan
Jul 22, 2004·Archives of Animal Nutrition·B Kocaoğlu GüçluA Can Ağca

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