*1.4.3 Nutritional*

In poultry a drop in feed conversion efficiency and decreased growth rate is observed following a chronic exposure to aflatoxin feed [73]. Aflatoxin modifies vitamin A nutrition in poultry halving the serum retinol and Plasma concentration of 25-hydroxyvitamin D and 1,25- dihydroxyvitamin D concentrations [48, 74]. Bennett and Klich [8], toxin has been a factor modulating the rate of recovery from protein malnutrition. Toxin contaminated diet affect zinc and selenium which are essential for healthy immune systems [75].
