Studies on the reduction of cholesterol content in meat by incorporation of Amaranthus leaf meal (A. tricolor) in broilers
K. NAGARAJA KUMARI, P.V.V. SATYANARAYANA REDDY,
P. SUDHAKARA REDDY AND K. PRABHAKAR REDDY *
Department of LPM (Avian) *Department of Livestock Products and Technology
College of Veterinary Science Tirupati - 517 502 (A.P)
Amaranthus leaf meal (ALM) was fed to broilers at 0, 2.5, 5, 7.5 and 10 per cent levels on iso-proteinic and iso-caloric basis. Day-old commercial Cobb male broiler chicks were randomly distributed in 5 treatment groups of 30 in each with three replicates in each treatment and the experiment was carried out for 42 days. Body weight gain showed significant decrease (P < 0.05) at 10 per cent ALM dietary level. Feed consumption, feed efficiency, ready-to-cook yield, giblet yield, serum protein, albumin, globulin, A:G ratio, serum HDL-C, triglyceride, breast muscle VLDL-C, fat, thigh muscle protein, HDL-C were not differed significantly. Serum cholesterol and meat cholesterol decreased significantly (P < 0.01) as the level of ALM increased in the diet. Serum LDL-C, breast muscle LDL-C, triglyceride, thigh muscle LDL-C, triglyceride (P < 0.01) and fat (P < 0.05) values also decreased significantly. However, a significant increase in serum VLDL-C (P < 0.05) breast muscle HDL-C and breast muscle protein values (P < 0.01) were observed. It may be inferred that the ALM can be incorporated up to 7.5% level in the broiler diets for reduction of cholesterol content in the chicken meat without affecting their performance.