Divergent selection for body weight and yolk precursor in Coturnix coturnix japonica. 2. Correlated responses in plasma lipoproteins and lipids

Poultry Science
W L BaconD H Ohm

Abstract

Lipoproteins from generations five and six of Japanese quail (Coturnix coturnix japonica) divergently selected for increased (HW) or decreased (LW) body weight at 4 weeks of age or increased (HP) or decreased (LP) plasma yolk precursor at the initiation of egg production were separated into fractions of d less than 1.006 and d greater than 1.006. A randombred control (R1) was also sampled. Total lipids (TL), neutral lipids (NL), and phospholipids (PL) were determined. The NL's of the d less than 1.006 lipoprotein fractions were also analyzed for cholesterol esters (CE), triglycerides (TG), cholesterol (C), and a fraction of minor lipid components including digycerides (DG+). A correlation of .960 between total plasma phosphorus and TL of the d less than 1.006 lipoprotein fraction was observed. No strain effect was noted for TL, NL, or PL for either generation in the d greater than 1.006 fraction. In the d less than 1.006 fraction, TL, NL, and PL all varied concurrently, with the order being HP greater than HW, LW, R1 greater than LP. Percent NL and PL did not vary with strain in the S5 generation in the d less than 1.006 fraction. In the S6, the HP strain had a higher % NL and lower % PL in the d less than 1.006 fraction. No di...Continue Reading

Related Concepts

Metazoa
Japanese Quail
Egg Yolk (Dietary)
Lipids
Lipoproteins
Phospholipids
Red Phosphorus
Quail
Selection, Genetic

Related Feeds

ApoE, Lipids & Cholesterol

Serum cholesterol, triglycerides, apolipoprotein B (APOB)-containing lipoproteins (very low-density lipoprotein (VLDL), immediate-density lipoprotein (IDL), and low-density lipoprotein (LDL), lipoprotein A (LPA)) and the total cholesterol/high-density lipoprotein (HDL) cholesterol ratio are all connected in diseases. Here is the latest research.