Effect of use of Chalconoids as Antioxidants on Milk Production and on Qualitative and Quantitative Properties of Milk in Zaraibi Goats

Abstract

The present study aims to evaluate the effect of chalcones on milk production and qualitative properties of milk in Zaraibi goats. Five chalcones have been synthesized via Clasien- Schmidt condensation under alkaline conditions. Structures of the synthesized chalcones have been confirmed by their melting point (m.p.), Infrared spectrum IR and Proton Nuclear Magnetic Resonance (1H-NMR) spectra. Total antioxidant capacity (TAC) of the synthesized compounds indicated that chalcone 5 [1-(benzofuran-2-yl)-3-(4-methoxyphenyl)-prop-2-en-1-one] has the highest antioxidant activity among the five synthesized chalcones. Sixteen dairy Zaraibi goats have been divided into three groups according to their parity, milk yield, body weight and age. G1 (4 animals) serves as control group and was fed the basal diet, G2 (6 animals) was fed the basal diet + 250 mg/head/day of chalcone 5 and G3 (6 animals) was fed the basal diet + 500 mg/head/day of chalcone 5 as oral