Dr. A.M. ThakerTARUN BALANI2017-08-182017-08-182006http://krishikosh.egranth.ac.in/handle/1/5810028880The present study was conducted on day old White Leghorn cockerels, which were acclimatized for one week before the start of oral dosing of Imidacloprid. Imidacloprid is a neonicotinoid insecticide having widespread use in agriculture and is also used as an ectoparasiticide in dogs and cats. Approximate medium lethal dose (ALD50) of Imidacloprid used for the study was 50 mg/kg body weight. One hundred twenty five birds were divided into five different groups each comprising 25 birds. The birds of group C1 were given no treatment and served as control. Group C2 was administered groundnut oil (1ml/kg) and served as control (vehicle). Group I1 was given 1/40th of ALD50 (1.25 mg/kg), and Group I2 was put on 1/30th of ALD50 (1.67 mg/kg), while group I3 received 1/20th of ALD50 (2.5 mg/kg) of Imidacloprid suspended in groundnut oil. Once daily oral dosing was carried out for 28 daysenVeterinary PharmacologystudiesThesis