In present study the effect of organic acid on intestinal mucosa and morphometery of different organs of two strains of broiler were studied. 100 birds of each strain were taken and divided into further two groups. Organic acid was added to commercially available feed as 1gm per kg ratio and offered to the one selected groups of each strains of broiler birds. To compare the effect histo-morphometric parameters were taken of 21 and 42 days old broiler. All standard operating procedures were adopted during sampling, morphometric measurements and tissue processing technique. Total 300 samples of duodenum, jejunum and ilium were taken for histological studies. All villi were selected according to standard selection criteria of villus height. The results of intestinal histology of small intestine and morphometeric studies of different organs of broiler showed that organic acids mixed diet was significantly (P<0.05) better than the commercial diet but there no significant difference between two strain of broiler commercially available in Pakistan.
Key words: Broiler, Organic acids, Intestinal histology, Histomorphometric studies.