Effect of dietary intervention on the performance and biochemical indices of chicken broilers challenged with Aspergillus flavus 306

A study was conducted to determine the effects of dietary interventions of vitamins A and C, methionine and lysine singly and in combination on broilers challenged with Aspergillus flavus. The interventions were Vitamins A+C (A+C), Methionine+Lysine (METH+LYS) and Vitamins A+C+METH+LYS. The experiment which was conducted for 8 weeks employed a completely randomized design. Feed intake, weight gain, nutrient retention and feed conversion efficiency were significantly influenced (p 0.05) however, higher lymphocytes values were observed in challenged birds with dietary intervention. As a general immune modulator, vitamins A and C with lysine and methionine may be an attractive alternative to the on-farm use of vaccines in poultry in the management of aspergillosis.