Abstract This study was carried out to study the beneficial role of organic acids and other beneficial compounds produced by Aspergillus japonicas and their effects on the egg production, egg quality, fertility, and hatchability as well as blood metabolites of quail breeders. A number of 150 mature 8-week of age Japanese quails (100 females and 50 males) were used and divided into 5 groups. The 1st, 2nd, 3rd, 4th, and 5th groups were fed basal diet with 0 (control), 1, 2, 3, and 4 ml Aspergillus japonicas culture filtrate/kg diet, respectively. The use of Aspergillus japonicas filtrate improved egg number, egg mass and feed conversion ratio when compared to control. The use of Aspergillus japonicas filtrate quadratically improved feed conversion ratio when compared to control at all ages. Quail breeders fed 2 and 3 ml Aspergillus japonicas filtrate-treated diets consumed less feed than the other diets (0, 1, or 4 ml) during 8–12 week-old and the overall period. Supplementation of Aspergillus japonicas filtrate to quail diets improved fertility percentage during 12–16 and 8–16 week of age, the best level was 2 ml/kg of filtrate. Addition of Aspergillus japonicas filtrate to quail diets reduced the shell percentage and shell thickness, but increased the Haugh unit. The use of Aspergillus japonicas filtrate in quail breeder’s diets tended to decline total cholesterol, triglyceride, LDL, and VLDL in plasma. Inclusion of Aspergillus japonicas filtrate in the diets of quail breeders improved the immune parameters. The activity of SOD and TAC was higher in Aspergillus japonicas filtrate groups than the control. In conclusion, supplemental Aspergillus japonicas filtrate could improve productive and reproductive performance, lipid profile, immunity, and antioxidant indices. Highlights Use of Aspergillus filtrate in quail diets improved egg production and egg mass. Use of Aspergillus japonicas filtrate to quail diets improved fertility percentage Use of Aspergillus filtrate in quail diets improved immunity and antioxidant indices Dietary addition of Aspergillus filtrate improved lipid profile.

中文翻译：

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日本曲霉培养滤液作为饲料添加剂在鹌鹑饲养中的应用

摘要 本研究旨在研究日本曲霉产生的有机酸和其他有益化合物的有益作用及其对鹌鹑种鸡产蛋量、蛋品质、繁殖力、孵化率和血液代谢物的影响。使用150只8周龄成熟日本鹌鹑（100只雌性和50只雄性）并分成5组。第 1、2、3、4 和 5 组分别用 0（对照）、1、2、3 和 4 ml 曲霉培养物滤液/kg 饲料喂食基础饲料。与对照相比，使用日本曲霉滤液提高了产蛋数、产蛋质量和饲料转化率。与所有年龄的对照相比，使用日本曲霉滤液成二次提高饲料转化率。在 8-12 周龄和整个时期，用 2 毫升和 3 毫升日本曲霉滤液处理的日粮喂养的鹌鹑种鸡比其他日粮（0、1 或 4 毫升）消耗更少的饲料。在鹌鹑饲料中添加日本曲霉滤液可提高 12-16 周龄和 8-16 周龄的受精率，最佳水平为 2 ml/kg 滤液。在鹌鹑饲料中添加日本曲霉滤液降低了壳百分比和壳厚度，但增加了哈夫单位。在鹌鹑饲养者的饮食中使用日本曲霉滤液倾向于降低血浆中的总胆固醇、甘油三酯、低密度脂蛋白和极低密度脂蛋白。在鹌鹑饲养者的饮食中加入日本曲霉滤液可改善免疫参数。黑曲霉滤液组中SOD和TAC的活性高于对照组。综上所述，补充日本曲霉滤液可以提高生产和繁殖性能、血脂、免疫力和抗氧化指数。亮点 在鹌鹑日粮中使用曲霉滤液可提高产蛋量和产蛋量。在鹌鹑日粮中使用日本曲霉滤液提高了受精率 在鹌鹑日粮中使用曲霉滤液提高了免疫力和抗氧化指数 在日粮中添加曲霉滤液可以改善血脂状况。