Distribution of 5-hydroxytryptamine and histamine in tissues of WLH chicken

5-Hydroxytryptamine and histamine were estimated in lungs, liver, spleen and adrenals of chicken. A substantial amount of both the amines was found in all the organs. The highest level of both the amines was found in adrenals followed by spleen, lungs and liver. The level of 5-hydroxytryptamine was, however, higher than histamine in all the tissues except adrenals.