Abstract: Tick infestation is a major constraint affecting health, productivity, and welfare of dairy cattle under tropical field conditions. Heavy tick burden leads to blood loss, irritation, reduced milk yield, poor milk quality, and transmission of tick-borne diseases, causing substantial economic losses to farmers. A Front Line Demonstration (FLD) was conducted by Krishi Vigyan Kendra, Kundrakudi, Sivagangai district, Tamil Nadu, to evaluate the field efficacy of Tick Shield for controlling tick infestation in dairy cattle and calves. Animals with moderate to severe tick infestation were selected, and Tick Shield was applied as per the recommended dosage. Observations were recorded before treatment and on the 7th, 14th, and 21st days after application. Results showed a significant and progressive reduction in tick infestation from 100% before treatment to 7% by the 21st day. Correspondingly, improvements were observed in milk yield, milk fat percentage, and Solid Not Fat (SNF) content. The demonstration clearly revealed that Tick Shield is an effective, farmer-friendly, and economical ectoparasitic control measure, contributing to improved animal health, milk productivity, and farmer satisfaction under field conditions.
