Study on the effect of consumption period of fish oil on serum concentration of cholesterol and triglyceride and antibody response in broiler chicks

Abstract

The aim of the present study was to determine the optimal time of fish oil inclusion in broiler feed formulation on antibody response and concentration of serum cholesterol and triglyceride. A 49 day study was conducted on 600 one-day old chicks from a commercial hybrid (Ross) which were randomly allocated to 6 groups. The control group was fed a diet containing 5 % corn oil and in experimental groups the fish oil was substituted for corn oil from 2,3,4,5 and 6 weeks. Serum concentration of cholesterol and triglyceride were determined on days 37 and 44. Titer of antibody against sheep red blood cells (SRBC) were determined 7 days after immunization on days 30 and 37. Supplementation of diet by fish oil did not affect concentration of serum cholesterol. However, concentration of serum triglyceride decreased significantly (p

Keywords

• Omega-3 fatty acid
• antibody response
• Fish oil
• broiler
• Length of consumption