Wastes generated in pig production are widely used as agricultural fertilizers. Nevertheless, such form of disposal supplies large amounts of waste in soils annually and can cause environmental pollution. The ecological risk of this practice to soil organisms has received little attention. Ecotoxicological tests are used to evaluate the toxicity of contaminants added to the soil biota. The aimed to evaluate the effect of liquid pig manure (LPM) on the reproduction of Eisenia andrei and Enchytraeus crypticus when applied in natural soils. LPM doses caused effects on earthworm reproduction in both soils, with EC₅₀ of 112 and 150 m³ ha⁻¹ in the Entisol and Nitosol, respectively. On enchytraeids, LPM had bigger effects, leading to EC₅₀ of 17.7 and 45.0 m³ ha⁻¹ in the Entisol and Nitosol, respectively. The results emphasize the importance to consider the ecological risks of LPM of conducting studies with natural soils and edaphic fauna as indicators.

养猪生产中产生的废物被广泛用作农业肥料。然而，这种处置方式每年会在土壤中提供大量废物，并可能造成环境污染。这种做法对土壤生物的生态风险几乎没有引起注意。生态毒理学测试用于评估添加到土壤生物群中的污染物的毒性。目的是评估液态猪粪肥（LPM）在天然土壤中施用时对Eisenia andrei和Enchytraeus crypticus繁殖的影响。LPM剂量对两种土壤的worm繁殖都具有影响，EC ₅₀为112和150 m ³  ha ^-1分别在Entisol和Nitosol中 在肠包衣上，LPM的作用更大，导致Entisol和Nitosol的EC _50分别为17.7和45.0 m ³  ha ^-1。研究结果强调了在以天然土壤和水生动物为指标进行研究的过程中考虑到LPM的生态风险的重要性。