Department of Animal Science, School of Agricultural Sciences, Faculty of Agriculture, Science and Technology, North West University, P Bag X 2046, Mmabatho, South Africa.
Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North West University, P Bag X 2046, Mmabatho, 2735, South Africa.
Trop Anim Health Prod. 2024 Oct 31;56(8):371. doi: 10.1007/s11250-024-04217-2.
The current study was conducted to investigate the effect of Melia azedarach seed-mediated ZnO nanoparticles on growth performance, protein utilisation efficiency, haematology and nutritional status in pigs. A total of 48 pigs were allocated to the following six treatments replicated 8 times: Negative Control (NC, No antibiotic), Treatment 2: Positive control (PC) given a conventional antibiotic (Oxytetracycline, 40 mg/kg feed); Treatment 3: Nano-ZnO 300 mg/L (N300ZnO), Treatment 4: Group given 150 mg/L Melia azedarach seed mediated nano-ZnO (N150MA), Treatment 5: Group given 300 mg/L Melia azedarach seed mediated nano-ZnO (N300MA), Treatment 6: Group given 450 mg/L Melia azedarach seed mediated nano-ZnO (N450MA). The experiment was conducted over 7 weeks. Melia azedarach seed-mediated ZnO nanoparticles had no significant effect on growth performance apart from average daily feed intake (ADFI) with treatment 3 having the highest value. It significantly affected protein consumption and growth efficiency but not protein efficiency ratio and specific growth rate. Melia azedarach seed-mediated ZnO nanoparticles had no significant impact on nutritional parameters, serum minerals apart from phosphorus which can negatively affect renal functioning.
本研究旨在探讨苦楝籽介导的 ZnO 纳米粒子对猪生长性能、蛋白质利用效率、血液学和营养状况的影响。将 48 头猪分为以下 6 个处理组，每个处理组重复 8 次：阴性对照（NC，无抗生素）、处理 2：阳性对照（PC，给予常规抗生素（土霉素，40mg/kg 饲料））；处理 3：纳米 ZnO300mg/L（N300ZnO）；处理 4：给予 150mg/L 苦楝籽介导纳米 ZnO 的组（N150MA）；处理 5：给予 300mg/L 苦楝籽介导纳米 ZnO 的组（N300MA）；处理 6：给予 450mg/L 苦楝籽介导纳米 ZnO 的组（N450MA）。实验进行了 7 周。除了平均日采食量（ADFI）外，苦楝籽介导的 ZnO 纳米粒子对生长性能没有显著影响，其中处理 3 的 ADFI 值最高。它显著影响蛋白质的消耗和生长效率，但不影响蛋白质效率比和特定生长率。苦楝籽介导的 ZnO 纳米粒子对营养参数、血清矿物质没有显著影响，除了磷，磷可能对肾功能产生负面影响。
