The Effect of Grape Seed Extract on Broiler Production and Physiological Traits: A Comprehensive Review

This comprehensive review examines the effects of grape seed extract (GSE) on broiler production and physiological traits, highlighting its potential as a natural feed additive in poultry nutrition. Grape seed extract is rich in polyphenols, particularly proanthocyanidins, which possess antioxidant, anti-inflammatory, and antimicrobial properties. These bioactive compounds may enhance growth performance, improve feed efficiency, and promote overall health in broilers. The review synthesizes findings from various studies that investigate the impact of GSE on key performance indicators such as weight gain, feed conversion ratio (FCR), and carcass quality. Additionally, it explores the physiological effects of GSE on parameters such as immune response, gut health, and oxidative stress markers. Evidence suggests that GSE supplementation can lead to improved intestinal morphology, enhanced villus height, and increased beneficial gut microbiota, contributing to better nutrient absorption and overall health. Furthermore, the review discusses the optimal dosage of grape seed extract for maximizing its benefits in broiler production, as well as potential mechanisms underlying its effects. The implications of using GSE as a sustainable alternative to antibiotic growth promoters are also considered, given the growing concerns over antibiotic resistance in livestock. In conclusion, grape seed extract shows promise as a functional feed additive that can positively influence broiler production and physiological traits. Future research should focus on long-term effects, optimal inclusion rates, and practical applications in commercial poultry farming to fully realize the benefits of this natural supplement.