Evaluation of the effect of an aqueous extract of Moringa oleifera (Moringaceae) leaves on the biochemical and blood parameters of Cobb 500 broiler chickens

To better utilize Moringa oleifera leaves, a pharmacological study was conducted on the aqueous extract of the plant’s leaves in the context of animal health. Thus, phytochemical analysis of the aqueous extract of Moringa oleifera leaves revealed the presence of sterols, polyterpenes, polyphenols, flavonoids, quinones, and catechin tannins. The acute toxicity test conducted according to OECD 423 showed that the aqueous extract of Moringa oleifera leaves is not toxic when administered orally as a single dose at 2000 mg/kg body weight. Administration of this extract resulted in an increase in the live weight of chickens and a reduction in the feed conversion ratio. Measurement of biochemical markers showed that the aqueous extract of M. oleifera leaves reduced urea and AST levels in chickens. Regarding the immune system, this extract increased white blood cell counts, neutrophils, and lymphocytes in broiler chickens. The leaves of this plant could therefore be used as an immunostimulant in broiler chickens.