Agro-JetH is a needle-free device used for mass delivery of vaccines and drugs in livestock and poultry. The device is semiautomatic and requires a small CO 2 tank or compressed air for low pressure delivery. Upon trigger activation, CO 2 disperses the injectate at a precise dose into the muscle, dermis or subcutaneous tissue depending on the setting that was standardized for our use. We used an effective volume of 0.1 ml in our injectate [39] . In this study we were able to effectively deliver 0.1 ml of injectate into the animal's dermis/subcutaneous tissue at a pressure of 48-55 psi.