Dec 10, 2019 · Concentration of 2.5 OD values at 525 nm with a dose of 1 mL per bird subcutaneously was selected as LD50. Keywords. Lethal dose, LD50,.

As a preliminary approach for the development of vaccine, determination of LD50 for R. anatipestifer in host system is required and the present study is ...

Determination of Lethal Dose (LD50) of Riemerella anatipestifer. Rinsha Balan. 1. , P. M. Priya. 1*. , M. Mini. 1. , Binu K. Mani. 2. , Vrinda Menon. 3 and P.