The Effects of Boron (Orthoboric Acid) Supplementation into Diets on Serum Lipid and Protein Profiles of Hens During Late Laying Period

This study was carried out to determine the effects of boron addition into the diets on serum parameters of hens. A total of 288 Lohman laying commercial hybrid chickens of 62 weeks were fed for 12 weeks with four different rations containing basal feed 0 (B0), 50 (B50), 75 (B75) and 150 (B150) mg / kg B. Each group was replicated in 18 cages, four hens per cage. During the study, 16 hours lighting program was applied, feed and water were given as ad-libitum. The effect of boron supplementation was not significant on the rates of diacylglycerol and hydrocarbon+cholesterol esters (P>0.05) but the rates of polarlipid, triacylglycerol (P<0.05), and serum total cholesterol (P<0.01) were found significant. Lipid peroxidation values of groups fed with diets including 75 and 150 mg/kg B were determined lower than others. Addition of ration B affected different molecular weight proteins at different levels. In conclusion, it has been determined that the addition of B at different levels into the diets of laying hens during late laying period significantly influenced the serum lipid peroxidation, serum lipid and serum protein profile, but further researches are needed to clarify the changes related to the effects of B addition into diets on mentioned parameters of laying hens.