Efficacy of Deltamethrin against Lice Infestation in Bufffalo Calves

During the present survey, 20 buffalo calves were examined for lice infestation at a private buffalo farm, situated in Lathuwadi, Namakkal, Tamil Nadu, India. One hundred percent of the buffalo calves were infested with Haematopinus spp. Clinical signs included of alopecia, pruritis, small crusts and scabs. Lesions were confi ned to the neck, shoulders and rump. Skin scrapings were examined and eggs, larva, nymphs and adult mites were recovered. The relationship between sex and age of animal was also determined; it was 94.1% in females for Haematopinus spp., while in males it was 80 percent. It was signifi cantly (P<0.05) higher in age group of more than six months as compared to 14.2% in lesser than six months old.