Effect of Summer Stress and Supplementation of Vitamin E and Selenium on Serum Lipid Profile in Hallikar Cattle

A study was carried out to assess the effect of different seasons and supplementation of vitamin E and selenium during different seasons on serum triglycerides, total cholesterol, HDL cholesterol, LDL cholesterol and VLDL cholesterol levels in Hallikar cattle belonging to different farmers of Madabal Village of Magadi Taluk, Ramanagar District, Karnataka, India. The study was carried out in two groups of animals, viz. , control group that received regular diet and supplemented group that received vitamin E and selenium in addition. In the present study, the serum triglycerides levels were significantly (Pless than0.05) lower and total cholesterol levels were significantly (Pless than0.05) higher during summer compared to winter season in control group. Both triglycerides and total cholesterol levels were significantly (Pless than0.05) higher in supplemented group compared to control group during all the seasons. Serum HDL cholesterol levels were significantly (Pless than0.05) higher in supplemented group compared to control group. Serum LDL cholesterol and VLDL cholesterol levels were significantly (Pless than0.05) higher and lower, respectively, during summer season compared to winter season in control group. It was concluded that the summer stress significantly influence the levels of serum lipid profile and supplementation with vitamin E and selenium during summer stress is beneficial as they significantly increase the concentration of HDL cholesterol in Hallikar cattle.