Abstract
Observation was made in this study with the change of the magnetization using earthworms as specimen animals for the test. Therefore an earthworm which was dehydrated to be cut down into 3 portions, i.e. the head, body, and tail was measured by VSM. It is revealed from this observation that very little magnetization was found in the head, and the values of the magnetization are made greater in the order of the body and tail. The magnetite (Fe3O4) however taken up hereby was 1g/m2-50g/m2 in amount, respectively. Furthermore by keeping the magnetite in the individual containers, the behavior of the earthworms dependent on whether the magnetite is in existence or not was observed.
Meanwhile with the earthworms fed by the earth baits having the magnetization of 0.020 T and 0.033 T, the values of the magnetization of such earthworms are greater than those of the earthworms fed by the normal baits with respect to either portion of the head, body, and tails. Furthermore with the earthworms dropping at that time, the value of the magnetization is considerably great. This might stem from the reason that the earthworms themselves magnetization values are closely related with the magnetization of the soil. Meanwhile measurement of the pH values made it clear that the earth baits and droppings were alkaline, and it is made plain from this that as the magnetization value was made greater, an increasing tendency was noted with the alkalinity.
