Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, Bari 70010, Italy.
Poult Sci. 2024 Oct;103(10):104109. doi: 10.1016/j.psj.2024.104109. Epub 2024 Jul 17.
This study evaluated the effects of dietary butyric acid (BA) on the Japanese quail' performance, immunology, lipid profile, cecal microbiota, and antioxidant levels. 250 unsexed, one-week-old quail chicks were divided into 5 groups, each with fifty chicks (5 replicates of 10 chicks). The first group was given the basal diet (BD), while the 2nd to 5th groups were fed BD with 50, 100, 150, and 200 mg BA/kg, respectively. The results indicated that BA improved weight gain and FCR (p < 0.05) and decreased total FI. The 200 mg BA/kg of diet showed the lowest FI (p < 0.05) and the best FCR (p > 0.05). BA boosted immunity through increasing IgA, IgM, IgG, and Complement 3. Significantly lower alanine aminotransferase (ALT), aspartate aminotransferase (AST), and lactate dehydrogenase (LDH) were observed at 150 and 200 mg BA/kg (P < 0.05) than the control group. The BA-supplemented quail showed lower total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), and very low-density lipoprotein (VLDL) than the control one. This effect was more pronounced for 100 and 200 mg of BA/kg. However, high low-density lipoprotein (HDL) did not differ from the control group (p > 0.05). BA at ≥100 mg/kg diet reduced malondialdehyde (MDA) and induced greater levels of superoxide dismutase (SOD), total antioxidant capacity (TAC), glutathione peroxidase (GPX), globulin, total protein, digestive enzymes than the control group (P < 0.05). BA decreased cecal E. coli, Salmonella, Enterococcus, and Coliforms and increased Lactic acid bacteria (p < 0.05) compared to non-supplemented group. Collectively, the inclusion of 100 mg BA/kg diet is ideal for Japanese quail production and health.
本研究评估了丁酸（BA）对鹌鹑生产性能、免疫学、脂质谱、盲肠微生物群和抗氧化水平的影响。250 只不分性别的一周龄鹌鹑雏鸡被分为 5 组，每组 50 只雏鸡（10 只雏鸡 5 个重复）。第一组给予基础日粮（BD），第二至五组分别给予 BD 加 50、100、150 和 200mg/kg BA。结果表明，BA 提高了体重增加和饲料转化率（p＜0.05），降低了总饲料摄入量。日粮中添加 200mg/kg BA 时，饲料摄入量最低（p＜0.05），饲料转化率最佳（p＞0.05）。BA 通过增加 IgA、IgM、IgG 和补体 3 来增强免疫力。在 150 和 200mg/kg BA 时，丙氨酸氨基转移酶（ALT）、天冬氨酸氨基转移酶（AST）和乳酸脱氢酶（LDH）显著低于对照组（P＜0.05）。添加 BA 的鹌鹑总胆固醇（TC）、甘油三酯（TG）、低密度脂蛋白（LDL）和极低密度脂蛋白（VLDL）均低于对照组。100 和 200mg/kg BA 的效果更为明显。然而，高密度脂蛋白（HDL）与对照组无差异（p＞0.05）。日粮中添加 BA （≥100mg/kg）可降低丙二醛（MDA）并诱导超氧化物歧化酶（SOD）、总抗氧化能力（TAC）、谷胱甘肽过氧化物酶（GPX）、球蛋白、总蛋白和消化酶水平高于对照组（P＜0.05）。与未添加组相比，BA 降低了盲肠大肠杆菌、沙门氏菌、肠球菌和大肠菌群，并增加了乳酸菌（p＜0.05）。综上所述，日粮中添加 100mg/kg BA 有利于日本鹌鹑的生产和健康。
