Departamento de Fisiologia e Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
Fish Physiol Biochem. 2012 Jun;38(3):789-96. doi: 10.1007/s10695-011-9562-4. Epub 2011 Oct 5.
This study investigated the effectiveness of eugenol and of the essential oil (EO) of Lippia alba when used in the transport of the silver catfish (Rhamdia quelen). These investigations involved measurements of blood (pH, PvO(2), PvCO(2) and HCO(3) (-)) and water parameters, survival and ionoregulatory balance. Fish (301.24 ± 21.40 g, 28.90 ± 1.30 cm) were transported at a loading density of 169.2 g L(-1) for 4 h in fifteen plastic bags (7 L) divided into five treatments: control, 1.5 or 3.0 μL L(-1) of eugenol and 10 or 20 μL L(-1) of EO of L. alba. The water parameters were measured before (0 h) and after (4 h) transportation. The net Na(+), Cl(-) and K(+) losses were higher in fish from the control treatment compared to the other treatments. The PvO(2), PvCO(2) and HCO(3) (-) increased significantly in all of the treatments at the end of the transport period. In conclusion, based on the water (total ammonia nitrogen) and ionoregulatory indicators determined in the present study, our findings indicate that eugenol and the EO of L. alba are recommended for use in the transport of this species because these anesthetics apparently reduce stress.
本研究调查了丁香酚和白千层精油（Lippia alba）在运输银鲶（Rhamdia quelen）时的效果。这些研究包括血液（pH、PvO2、PvCO2 和 HCO3-）和水参数、存活率和离子平衡的测量。将鱼（301.24 ± 21.40 g，28.90 ± 1.30 cm）以 169.2 g L-1 的装载密度装入 15 个塑料袋（7 L）中，每个处理组 5 个重复：对照组，1.5 或 3.0 μL L-1 的丁香酚和 10 或 20 μL L-1 的白千层精油。在运输前（0 h）和运输后（4 h）测量水参数。与其他处理组相比，对照组鱼的净 Na+、Cl-和 K+损失更高。在运输期末，所有处理组的 PvO2、PvCO2 和 HCO3-均显著增加。总之，根据本研究中确定的水（总氨氮）和离子调节指标，我们的研究结果表明，丁香酚和白千层精油可用于该物种的运输，因为这些麻醉剂显然可以减轻应激。
