This work investigated the outcomes of dietary administration of Echinacea purpurea (EP) powder to breeder ducks on productive and reproductive performance during summer season. Sudani ducks (320 birds) of 32-weeks-old (240 females and 80 males) were randomly allocated into four collections (body weight; 1850 ± 15.2 g for females and 2960.0 ± 40.5 g for males). The primary collection consumed the basal diet without supplementation and was deliberated as control. The other three collections were fed the basal diet supplemented with 2.5, 5.00 and 7.5 g EP/kg diet, correspondingly. Egg number and mass, laying rate, feed consumption and feed conversion ratio (FCR) were significantly changed by dietary EP levels. Drakes fed EP-supplemented diets had higher ejaculate volume, sperms concentration and live sperms (%) as well as lower dead sperms (%) than the control group. Eggs laid by ducks fed diet supplemented with 2.5 g/kg had the greatest fertility and hatchability percentages, followed by those fed 5.0 g EP/kg. Ducks fed different EP diets had higher values of haemoglobin, RBCs, WBCs and lymphocytes, lower values of heterophils percentage and lower H/L ratio than the control. All serum constituents were significantly changed by dietary EP supplementation, except of total protein and Alanine Aminotransferase (ALT) enzyme. Conclusively, dietary EP supplementation at 2.5 g/kg had beneficial effects on productive and reproductive performance as well as lipid profile and antioxidant status and economically valued in breeder ducks under summer conditions.

中文翻译：

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饲喂紫锥菊可提高夏季鸭种鸡的产蛋性能、血清脂质谱、抗氧化状态和精液质量

这项工作调查了紫锥菊的饮食管理结果(EP) 粉剂在夏季对种鸭生产和繁殖性能的影响。将 32 周龄的苏丹鸭（320 只）（240 只雌性和 80 只雄性）随机分配到四个集合中（体重；雌性 1850 ± 15.2 g 和雄性 2960.0 ± 40.5 g）。初级收集消耗了没有补充的基础饮食，并被视为对照。其他三个集合分别饲喂基础日粮，并相应地补充 2.5、5.00 和 7.5 克 EP/kg 日粮。日粮EP水平显着改变了蛋数和质量、产蛋率、饲料消耗和饲料转化率（FCR）。与对照组相比，喂食 EP 补充饮食的德雷克犬具有更高的射精量、精子浓度和活精子 (%) 以及更低的死精子 (%)。鸭子产下的蛋饲喂辅以 2. 5 g/kg 的繁殖率和孵化率最高，其次是饲喂 5.0 g EP/kg 的那些。与对照组相比，饲喂不同 EP 日粮的鸭具有更高的血红蛋白、RBC、WBC 和淋巴细胞值、更低的嗜异性百分比值和更低的 H/L 比值。除了总蛋白和丙氨酸氨基转移酶 (ALT) 外，所有血清成分都因膳食 EP 补充剂而发生显着变化。总之，在夏季条件下，日粮中添加 2.5 g/kg EP 对生产和繁殖性能以及血脂和抗氧化状态具有有益影响，并且在种鸭中具有经济价值。与对照相比，异嗜性百分比值和 H/L 比值更低。除了总蛋白和丙氨酸氨基转移酶 (ALT) 外，所有血清成分都因膳食 EP 补充剂而发生显着变化。总之，在夏季条件下，日粮中添加 2.5 g/kg EP 对生产和繁殖性能以及血脂和抗氧化状态具有有益影响，并且在种鸭中具有经济价值。与对照相比，异嗜性百分比值和 H/L 比值更低。除了总蛋白和丙氨酸氨基转移酶 (ALT) 外，所有血清成分都因膳食 EP 补充剂而发生显着变化。总之，在夏季条件下，日粮中添加 2.5 g/kg EP 对生产和繁殖性能以及血脂和抗氧化状态具有有益影响，并且在种鸭中具有经济价值。