Green tea leaves contain a wide range of active bio-compounds that are essential for sustainable quail intensification; however, its feed value is not known for the Jumbo quail. Therefore, this study evaluated the effect of different levels of green tea leaf powder (GTLP) on physiological and meat quality parameters of the Jumbo quail. One-week-old chicks (n = 350; 56.1 ± 2.12 g live-weight) were evenly distributed to 35 replicate pens and reared on five experimental diets formulated as follows: a standard grower diet with zinc-bacitracin (PosCon), a standard grower diet without zinc-bacitracin (NegCon), and NegCon diet treated with 10 (GT10), 25 (GT25) and 50 g/kg (GT50) of GTLP. Weight gain linearly decreased in week 2 but increased in week 4, whereas feed conversion efficiency linearly declined in weeks 2 and 3 as GTLP levels increased. Overall feed intake, carcass yield, and caecum and colon weights showed a linear increase with GTLP levels. Hematological parameters fell within the normal ranges reported for healthy quail. The GT10 group showed larger liver weights than the PosCon and NegCon groups. It was concluded that dietary inclusion of GTLP enhances overall feed intake and carcass performance but not feed efficiency, hematological and meat quality parameters of Jumbo quail.

中文翻译：

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绿茶（山茶）叶粉对大鹌鹑生长性能、选定的血液学指标、胴体特性和肉质参数的影响

绿茶叶含有多种活性生物化合物，对鹌鹑可持续集约化必不可少；然而，它的饲料价值并不因巨型鹌鹑而闻名。因此，本研究评估了不同水平的绿茶叶粉 (GTLP) 对巨型鹌鹑生理和肉质参数的影响。一星期大的雏鸡 ( n= 350; 56.1 ± 2.12 g 活重）被均匀地分配到 35 个重复的围栏，并在五种实验日粮中饲养，配方如下：含有杆菌肽锌的标准生长日粮（PosCon），不含杆菌肽锌的标准生长日粮（NegCon），以及用 10 (GT10)、25 (GT25) 和 50 g/kg (GT50) GTLP 处理的 NegCon 饮食。体重增加在第 2 周线性下降，但在第 4 周增加，而饲料转化效率在第 2 周和第 3 周随着 GTLP 水平的增加而线性下降。总采食量、屠体产量以及盲肠和结肠重量随着 GTLP 水平呈线性增加。血液学参数落在健康鹌鹑报告的正常范围内。GT10 组显示出比 PosCon 和 NegCon 组更大的肝脏重量。