Anandhi, M.Poorani, K.Priya, K. JyothiMathivanan, R.TANUVAS2018-01-082018-01-082017-122278-3687http://krishikosh.egranth.ac.in/handle/1/5810038976TNV_IJSET_Y2017_V6_ I6_Pg3305 – 3308An experiment was conducted on broilers for a period of 6 weeks with one hundred and twenty eight commercial, straight run day- old- chicks to study the influence of dietary organic chromium on immunity towards IBD infection. The treatment group consisted of basal diets (T1), 250 (T2), 500 (T3) and 750 (T4) μg organic chromium per kg basal diet. Immunity against IBD was assessed by Quantitative agar gel precipitation test (QAGPT). The geometric mean titre (GMT) value were recorded high in birds supplemented with 500 μg organic chromium per kg diet (T3), followed by T2 and T4 groups. The mean titre values were recorded high in T3 and T4 groups, followed by T2 group. Control group recorded the lowest titre values. The results revealed that organic chromium supplementation significantly (P< 0.01) improved the QAGPT titre against IBD.enVeterinary ScienceArticle