In the present study, 0.4% butyric acid was on par with
antibiotic in maintaining body weight gain, and reducing E.
coli numbers and found superior for feed conversion ratio.
Several additional effects that go beyond those of
antibiotics such as stimulating the villi growth of intestine,
higher carcass yield and low abdominal fat content were
also observed by dietary addition of butyrate. From the
findings of the present study, it is concluded that 0.4%
butyric acid could totally replace antibiotics in broiler
chicken diet.