Question:  query regarding use of anthalmintic  in animals in assam & northeast 
Answer:  generally, every six-month interval deworming should be done. in the case of assam & ne -preferably  before rainy  season [ march - april ] & before winter [ september - october ] deworming should be done ,; but deworming can be practised round the year because the assam & north -east is the heaven of parasite, except the gestation period of animal