Physiological studies on serum leveis of cholesterol ,total and lipoproteins in healthy and vaccinated laying hens

In tbe present investivatian the pnysiological changes in total lipids,cbomesterol ttotal,free and ester), phospho-lipids, tr~glycerides and serum lipoprotein electrophoreticpattern of Dokki4 fowls tmales,layers and non-layers) have been stud1ed~ Changes in tbe lip1dogram in regard to species variation (Plymoutb), sex difrerence, age and laying condit-ions ha~ebeen determined. Variations in .<i.m, inorganic phosphorus and alkaline phosphatase have been assessed under normal conditions’.The effect of vaccination with the Komarov strain of New-castle disease virus (NDV) OD tbe forementloned items bas been ’investigated’ •The results are summarized as follows 1. Dokk14 species males ana females have higber levels of total lipids and cholesterol (total,free ana ester) than the ’lymouth.2.- With advancement of’ age from 5 to 20 months total lip-1ds in males showed gradual rise in the serum trom 450 ± ~~2mg/lOO ml to 1074.t 55’.9 mg/lOO ml. Total s~rum cholesterolrose from 175 ± 6.3 mg/lOO ml to 236 .t 4.6 mg/lOO ml, free cholesterol rose from 120 .i 4.1 mg/lOO ml- to 174 .t 8’.3 mg/lOO ml t esterified cholesterol levels were insignificantly affec-ted w1 tb agar.