Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland; HiProMine S.A., Poznańska 8, 62-023 Robakowo, Poland.
Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland.
Poult Sci. 2020 Jan;99(1):196-206. doi: 10.3382/ps/pez450. Epub 2019 Dec 30.
This study was conducted to investigate the effect of insect full-fat meals (Tenebrio molitor and Zophobas morio larvae), added "on top" of a complete diet or calculated into diets, on the growth performance, selected blood, and immune system traits of broiler chickens. 1,000 one-day-old female Ross 308 broiler chicks were used in 2 independent experiments. In the first trial, the birds were randomly assigned to 6 treatments, 10 replicate pens per treatment, and 10 birds per pen, i.e., negative control; positive control with salinomycin addition (60 mg/kg diet), and addition of 0.2% and 0.3% of T. molitor and Z. morio full-fat meals "on top". In the second experiment, 4 treatments, 10 replicate pens per treatment, and 10 birds per pen were set, i.e., negative control, positive control with salinomycin addition (60 mg/kg diet), and 0.3% of T. molitor and Z. morio full-fat meals calculated in the diets. In both trials the supplementation of insects increased the BWG (Exp. 1: P = 0.024; Exp. 2: P = 0.046) and FI (Exp. 1: P = 0.022; Exp. 2: P = 0.026), and no negative effect on the FCR was recorded in experiment one (P = 0.514), however in second trial insects addition increased FCR values (P = 0.011). In addition, in the first trial, groups fed insects and PC comparing to NC decreased the IgY (P = 0.045) and IgM, (P < 0.001) levels. In the second experiment, IgM levels were also decreased (P < 0.001) in groups fed insects comparing to NC. Moreover, in first trial the IgM levels were negatively correlated to the BWG (r = -0.4845) and FI (r = -0.4986), with statistically significant values (P < 0.001). In conclusion, the current results confirmed that small amount addition (0.2% and 0.3%) of T. molitor and Z. morio full-fat meals to the diet of broiler chickens can improve growth performance and change selected the immune system traits.
本研究旨在探讨昆虫全脂饲料（黄粉虫和黑水虻幼虫）“额外添加”或计算入饲料中对肉鸡生长性能、血液和免疫系统特性的影响。选用 1000 只 1 日龄雌性罗斯 308 肉鸡，进行了两项独立实验。在第一个试验中，随机将鸡分为 6 个处理组，每个处理组设 10 个重复笼，每个重复笼 10 只鸡，即负对照；添加盐霉素（60mg/kg 日粮）的正对照，以及额外添加 0.2%和 0.3%黄粉虫和黑水虻全脂饲料的处理组。在第二个试验中，设 4 个处理组，每个处理组设 10 个重复笼，每个重复笼 10 只鸡，即负对照、添加盐霉素（60mg/kg 日粮）的正对照，以及计算入日粮的 0.3%黄粉虫和黑水虻全脂饲料的处理组。两个试验中，昆虫饲料的添加均提高了平均日增重（Exp.1：P=0.024；Exp.2：P=0.046）和采食量（Exp.1：P=0.022；Exp.2：P=0.026），且在第一个试验中，昆虫饲料添加对饲料转化率没有负面影响（P=0.514），但在第二个试验中，昆虫饲料添加增加了饲料转化率（P=0.011）。此外，在第一个试验中，与负对照相比，饲喂昆虫和 PC 的鸡群 IgY（P=0.045）和 IgM（P<0.001）水平降低。在第二个试验中，与负对照相比，饲喂昆虫的鸡群 IgM 水平也降低（P<0.001）。此外，在第一个试验中，IgM 水平与平均日增重（r=-0.4845）和采食量（r=-0.4986）呈负相关，具有统计学显著意义（P<0.001）。综上所述，本研究结果证实，将少量（0.2%和 0.3%）黄粉虫和黑水虻全脂饲料添加到肉鸡日粮中，可以提高生长性能，并改变免疫相关的血液指标。
