A possible role of caesium radiations in the control of propagation of hookworm.

Faeces charcoal mixtures containing eggs of sheep hookworm, Haemonchus contortus were exposed to caesium radiations (23 r to 1656 r) from 1st to 7th day of incubation. Each plate was exposed only once. A dose related inhibition of transformation of eggs to infective larvae was observed. The maximum effect was observed on 2nd day of incubation. The radiation has maximum effect on the 1st stage larvae followed by 2nd stage. The 3rd stage or ineffective larvae are relatively resistant to the effect of radiation.