Cilantro (Coriandrum sativum) is considered to be both a herb and a spice, used in traditional medicine for thousands of years. It contains several active phenolic acid compounds, and the main flavonoids include quercetin, kaempferol, rhamnetin, and apigenin.
In a research study conducted on broiler chicks in 2014, the results showed that the addition of cilantro powder or extract to the chick's diet resulted in improved performance indices and a positive immune system response. It also contributed to a reduction in pathogenic bacteria in the digestive tract, which aids in the improvement of intestinal health and well-being of the bird.