Animal Science Department, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran.
Department of Agriculture, Payame Noor University, Tehran, Iran.
Vet Med Sci. 2021 Jan;7(1):184-193. doi: 10.1002/vms3.343. Epub 2020 Aug 30.
Organic products of animals are getting more accepted by consumers. Using herbal additives may lead to more health animal products. In this research it is hypothesized that Lavandula angustifolia and/or Mentha spicata essential oils would be helpful to enhance production performance in laying hens.
This experiment was conducted to evaluate the effects of Lavandula angustifolia and Mentha spicata essential oils on performance, egg traits and blood variables in laying hens.
144 Lohmann LSL-Lite laying hens from 42 until 56 weeks of age were used in a completely randomized design in four treatments and six replicates (six birds per replicate). The treatments consisted of: (a) control group (basal diet), (b) basal diet supplemented with 250 mg/kg diet lavender essential oil (LEO), (c) basal diet supplemented with 250 mg/kg diet mint essential oil (MEO), and (d) basal diet supplemented with both LEO and MEO.
Using LEO and/or MEO did not affect body weight changes, feed intake, egg weight, egg index, yolk index, Haugh unit, egg shell weight and egg shell thickness. Feeding LEO, individually or in combination with MEO, did not affect FCR compared with the control group (p < .05), however, feeding MEO individually increased feed conversation ratio (FCR) compared to LEO and the control group during 42-56 weeks (p < .05), as well as decreasing egg mass compared to LEO (p < .05). Feeding LEO increased egg production compared to MEO and combination of MEO and LEO (p < .05).
In conclusion, dietary supplemental MEO (250 mg/kg) may increase FCR, and LEO (250 mg/kg) is more effective than MEO (250 mg/kg) for egg production and egg mass purposes; besides MEO (250 mg/kg) negatively affected FCR compared with the control group. In addition, no specific beneficial effect of dietary supplemental MEO and/or LEO on the other measured variables was detected.
动物的有机产品越来越受到消费者的认可。使用草药添加剂可能会生产出更健康的动物产品。在这项研究中，假设薰衣草和/或薄荷精油将有助于提高产蛋鸡的生产性能。
本试验旨在评估薰衣草和薄荷精油对产蛋鸡生产性能、蛋品质和血液变量的影响。
将 144 只 42 至 56 周龄的罗曼 LSL-Lite 产蛋鸡采用完全随机设计，分为 4 个处理组，每组 6 个重复（每个重复 6 只鸡）。处理组包括：（a）对照组（基础日粮）、（b）基础日粮添加 250mg/kg 日粮薰衣草精油（LEO）、（c）基础日粮添加 250mg/kg 日粮薄荷精油（MEO）、（d）基础日粮添加 LEO 和 MEO。
单独使用 LEO 和/或 MEO 对体重变化、采食量、蛋重、蛋指数、蛋黄指数、哈夫单位、蛋壳重和蛋壳厚度没有影响。与对照组相比，单独使用 LEO 或与 MEO 联合使用时，FCR 没有差异（p>.05），但与 LEO 和对照组相比，单独使用 MEO 会增加 42-56 周的饲料转化率（FCR）（p<.05），并降低蛋重与 LEO 相比（p<.05）。与 MEO 和 MEO 与 LEO 的混合物相比，添加 LEO 可提高产蛋率（p<.05）。
总之，日粮补充 MEO（250mg/kg）可能会增加 FCR，而 LEO（250mg/kg）在产蛋和蛋重方面比 MEO（250mg/kg）更有效；此外，与对照组相比，MEO（250mg/kg）对 FCR 有负面影响。此外，日粮中添加 MEO 和/或 LEO 对其他测量变量没有特定的有益影响。
