Influences of flavonoid (quercetin) inclusion to corn‐soybean‐gluten meal‐based diet on broiler performance

Abstract

Quercetin (a predominant flavonoid) is considered to have antimicrobial and antioxidant properties. This trial was conducted to evaluate the impact of graded doses of quercetin (QS) on growth efficiency, nutrient retention, faecal score, footpad lesion score, tibia ash and meat quality. In a 32‐day feeding test, a total of 576 1‐day‐old Ross 308 broilers (male) were allocated arbitrarily with an average body weight of 41 ± 0.5 g. The trial had four dietary treatments with eight repetitions of 18 birds per pen and a basal diet incorporating 0%, 0.02%, 0.04% and 0.06% of QS. As the QS dosage increased, body weight gain tended to increase linearly on Days 9–21 (p = 0.069) and overall period (p = 0.079). Similarly, feed intake increased (p = 0.009) linearly with the increasing doses of QS on Days 9–21. Likewise, there was a linear improvement in dry matter (p = 0.002) and energy (p = 0.016) digestibility after QS administration. Moreover, the inclusion of QS supplement (0%–0.06%) linearly increased (p = 0.012) tibia ash in broilers. However, the faecal score and footpad lesion score showed no significant outcome (p > 0.05). By giving broilers a graded amount of QS, the relative organ weights of breast muscle (p = 0.009) and spleen (p = 0.006) improved linearly, meat colour lightness increased (p = 0.015), redness tended to improve (p = 0.065) linearly and drip loss decreased (p = 0.015) linearly. The inclusion of QS in the graded‐level diet led to improvements in growth efficiency, nutrient absorption, meat quality and tibia ash, which recommended it as a beneficial feed additive for the broiler.

Assessing the potential of phytogenic feed additives: A comprehensive review on their effectiveness as a potent dietary enhancement for nonruminant in swine and poultry

“…Incorporating quercetin into the graded-level diet resulted in enhanced growth efficiency, absorption, meat quality and tibia ash levels, suggesting it as a potential additive in broiler production (Biswas, Cho, Ahn, et al, 2023).…”

“…Researchers found that giving supplemental plant extract to weaning piglets enhanced their efficiency, nutrient absorption and gut barrier integrity (Yan, Zhang, et al, 2012). The hydroxyl group of the bioactive substances present in the herb extract demonstrates antimicrobial properties because it can attach to protein molecules of bacteria, causing the release of essential cell components (Bessam & Mehdadi, 2014). Antibacterial substances obtained from plant polyphenols modify the intestinal microbiota of animals, which also shields animals from competing for essential nutrients and results in a decrease in harmful substances that inhibit rapid development and nutrient utilization (Klose et al, 2010).…”