PDF(Pubmed)
Abstract：
This study investigated the impacts of micellar quercetin (MQ) supplementation on growth performance, meat stability, excreta gas emissions, and physiological status. During a 35-day trial, 640 Ross 308 broilers were utilized. These birds were one day old, with an average initial body weight of 43.34 ± 1.43 g. They were randomly distributed across four experimental diets, each consisting of 10 replicate pens with 16 chicks per pen. The diets included the following: control (CON) with 0% micellar quercetin (MQ), TRT1 with 0.025% MQ, TRT2 with 0.050% MQ, and TRT3 with 0.100% MQ. The results indicate that broilers fed diets with increasing levels of MQ exhibited significantly higher body weight gains (BWGs) compared to the control group (p < 0.05). There was a clear linear increase in the breast muscle percentage with higher levels of quercetin supplementation (p < 0.05), while the breast color remained consistent across all groups (p > 0.05). Both cooking loss and drip loss exhibited a linear decrease as MQ levels in the diet increased (p < 0.05). The level of aspartate aminotransferase (AST) tended to decrease with higher MQ levels. Thyroxine (T4) and lymphocyte levels also showed a linear increase with increasing MQ dosage in the diet (p < 0.05). However, no significant effects were observed on nutrient digestibility, gas emissions, or fecal microbial components (Lactobacillus, E. coli, and Salmonella) with higher levels of MQ supplementation (p > 0.05). In conclusion, augmenting quercetin levels in the diet positively influenced the BWG, breast muscle development, and meat quality parameters such as cooking loss and drip loss, with beneficial effects on blood profiles.
摘要：
本研究调查了胶束槲皮素（MQ）对生长性能的影响，肉的稳定性，排泄物气体排放,和生理状态。在为期35天的审判中，使用了640只罗斯308只肉鸡。这些鸟一天大，平均初始体重为43.34±1.43g。它们随机分布在四种实验饮食中，每个由10个复制围栏组成，每个围栏有16个小鸡。饮食包括以下内容：含0%胶束槲皮素（MQ）的对照（CON），含0.025%MQ的TRT1,含0.050%MQ的TRT2,和具有0.100%MQ的TRT3。结果表明,与对照组相比,饲喂具有增加的MQ水平的日粮的肉鸡表现出显著更高的体重增加(BWG)(p<0.05)。有一个明显的线性增加在胸肌百分比与更高水平的槲皮素补充（P<0.05），而所有组的乳房颜色保持一致(p>0.05)。随着饮食中MQ水平的增加，烹饪损失和滴水损失均呈线性下降（p<0.05）。天冬氨酸转氨酶（AST）水平随着MQ水平的升高而降低。甲状腺素(T4)和淋巴细胞水平也显示出随着饮食中MQ剂量的增加而线性增加(p<0.05)。然而,对养分消化率没有显著影响，气体排放,或粪便微生物成分（乳酸菌，大肠杆菌，和沙门氏菌），添加更高水平的MQ（p>0.05）。总之,增加饮食中的槲皮素水平对BWG产生积极影响，乳房肌肉发育，和肉质参数，如烹饪损失和滴水损失，对血液轮廓有益的影响。
