The aims of this study were to evaluate the effect of adding biochar to feed and chicken litter on growth performance, hematological and biochemical blood parameters, fecal E.coli and litter total coliforms. The experiment was designed as a 2*2 factorial in a completely randomized design with four replicates; factor 1 was biochar in feed (No biochar: FBio0 or biochar 1%: FBio1); factor 2 was biochar in chicken litter (No biochar: LBio0 or biochar 1%: LBio1). Biochar was made from rice husk. One-day-old local chickens (Noi lai breed) (n=192) were used with 12 chickens per treatment/replicate.

Supplementing chicken feed with 1% rice husk biochar or adding it to the litter reduced plasma triglycerides, total coliform in litter and E. coli in feces, but had no impact on live weight gain, feed consumption and feed conversion ratio.