| Type | Plant Part | Dosage | Specific use | Results | Ref |
|---|---|---|---|---|---|
| Hens | 0.4 g/kg of diet | Egg quality | the combination of quercetin and vitamin E exert synergistic effects on egg production, egg quality, and immune function in aging hens. | F Amevor et al., 2021 | |
| Hens | 0.4 g/kg of diet | GI health | the combination of quercetin and vitamin E exerted synergistic effects on intestinal morphology by promoting villi height and crypt depth, as well as mitigated the intestinal inflammatory damage of the aged hens. | F Amevor et al., 2022 | |
| Hens | 0.4 g/kg of diet | Egg production | Increased egg laying rate, egg quality and reduced yolk cholesterol. | Y Liu et al., 2013 | |
| Broilers | 0.2 g/kg of diet | GI health | Microbial population of aerobes and coliforms decreased at higher levels of quercetin, while bifidobacteria increased. Increased antioxidant activity in liver. | J Carrasco et al., 2016 | |
| Hens | 0.4 g/kg of diet | egg production | Significant increase in secretion of hormones, oestradiol (E2), progesterone (P4), follicle-stimulating hormone (FSH), luteinizing hormone (LH), insulin-like growth factors-1 (IGF-1) and growth hormone (GH). Increased laying weight. | J Yang et al., 2017 | |
| Hens | 0.2 g/kg of diet | GI health | Increased population of Bifidobacteria and decreased the population of total aerobes and coliforms | H Liu et al., 2013 | |
| Chickens | 400 mg/kg of diet | Egg shelf life | May favorably prolong shelf-life of eggs, without any side effects on hen performance and egg quality traits. | P Simitzis et al., 2018 | |
| Hens | 0.2-0.6 g/kg diet for 8 weeks | Egg quality | Decreased broken or soft-shelled eggs laid in older hens and increased eggshell thickness. | Y Ying et al., 2015 | |
| Hens | 0.4 mg/kg of diet | GI health | ameliorated the LPS challenge-induced intestinal inflammation and improved intestinal functions, possibly associated with its modulation on gut microbiota, particularly the increased population of SCFA-producing bacteria. | J Feng et al., 2023 | |
| Hens | 0.5 g/kg diet for 8 weeks | antioxidant | decreased MDA concentration as well as increased GSH-Px, GR, GST, and SOD activities and GSH level. | H Iskender et al., 2016 | |
| Broilers | 200-400 ppm of diet | GI health | Enhanced intestinal morphometry by decreasing total coliforms and Clostridium perfringens and increasing Lactobacillus counts. The mRNA expression of intestinal Cu/Zn-superoxide dismutase (SOD1), glutathione peroxidase (GSH-Px) and nutritional transporters, including glucose transporter 2 (GLUT2), peptide transporter 1 (PEPT1), and fatty acid synthase (FAS) genes, were significantly upregulated | M Abdel-Latif et al., 2021 | |
| Chickens | liver protection, lead toxicity | improved the antioxidant capacity of the liver and alleviate liver tissue damage caused by Pb. | P Cai et al., 2021 | ||
| Chickens | 0.5 g/kg of diet | kidney protection | protected the kidney of chickens against the nephrotoxic effects caused by ingestion of the mycotoxin ochratoxin A. | R Abdelrahman et al., 2022 | |
| Broilers | 250 mg/kg of diet | Immunity | Decreased abdominal fat content. Increased Lactobacillus counts and the content of total superoxide dismutase (T-SOD) and total antioxidant capacity (T-AOC). | S Zhang et al., 2020 |
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