Evaluation of the displacement of earthworms (Eudrilus eugeniae) submitted to controlled electric pulses

Revista Brasileira de Engenharia Agrícola e Ambiental

Ribeiro Filho, Osvaldo P.¹  Costa, Douglas R. da¹  Ferraz, Isnard D.¹  Martins, José H.²  Oliveira Filho, Delly²  Santos, Luiz C. dos¹ 

[1]UFV

[2]UFV, Viçosa

DOI  :  10.1590/S1415-43662005000300022

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

The objective of this work was to determine,in laboratory, the displacement index and the separation index of earthworms(Eudrilus eugeniae) from the humus, to define the characteristics ofthe electric pulses that allow better efficiency in the separation of earthwormsin pilot scale. The tests presented the following characteristics: (i) tension- 100 to 500 V; (ii) pulse level - 2.3 and 4 ms; (iii) frequency - 1 and 5 Hz;(iv) exhibition time - 1, 2, 3 and 4 h. It was verified that the earthwormssubmitted to the electric pulses preferentially move towards the cathode. Forthe studied situations the highest value obtained for the displacement indexwas 78.18%, while the separation index was 63.37%. The utilization of controlledelectric pulses for the earthworm separation from the substrate generate meangain along the estimated useful life of, around 26% of economic savings.

【 授权许可】

CC BY-NC