生物利用度,小体积和直接吸收在血液中,使纳米颗粒(NPs)成为水产养殖业中引人注目的饲料添加剂。因此,膳食氧化铁纳米颗粒(Fe2O3-NPs)用于检查它们对生长的影响,营养吸收,鲤鱼(鲤鱼)鱼种的身体成分和血液指数。健康的C.carpio鱼种(n=270)饲喂六种基于卡诺拉粉的实验饮食(D1对照,D2,D3,D4,D5,D6)分别补充了0、10、20、30、40和50mg/kg的Fe2O3-NPs。将总共15个鱼种(平均初始重量5.51±0.04g/鱼)一式三份保持70天。结果表明,最大的生长性能,表观消化率系数,在补充40mg/kgFe2O3-NPs时观察到身体成分和血液学参数。所有实验饮食在所有上述参数方面均比对照饮食显著改善(p<0.05)。在目前的研究中,Fe2O3-NPs作为膳食补充剂的推荐剂量为40mg/kg,以改善生长,营养吸收,C.carpio鱼种的身体成分和血液学指标。因此,这项研究证明了NPs改善鱼类健康的潜力。
The bioavailability, small size and direct absorption in the blood, make nanoparticles (NPs) a remarkable feed additive in the aquaculture industry. Therefore, dietary iron oxide nanoparticles (Fe2 O3 -NPs) were used to examine their effects on growth, nutrient absorption, body composition and blood indices in Cyprinus carpio (Common carp) fingerlings. Healthy C. carpio fingerlings (n = 270) were fed with six canola meal based experimental diets (D1-control, D2, D3, D4, D5, D6) supplemented with 0, 10, 20, 30, 40 and 50 mg/kg Fe2 O3 -NPs respectively. A total of 15 fingerlings (average initial weight 5.51 ± 0.04 g/fish) were kept in triplicates for 70 days. The results indicated that maximum growth performance, apparent digestibility coefficient, body composition and haematological parameters were observed in 40 mg/kg Fe2 O3 -NPs supplementation. All the experimental diets were significantly improved (p < 0.05) in all the above parameters than control diet. In the present research, the recommended dosage of Fe2 O3 -NPs as dietary supplement is 40 mg/kg for improving the growth, nutrient absorption, body composition and haematological indices in C. carpio fingerlings. Hence, this study demonstrates the potential of NPs to improve the health of fish.