Dec 10, 2019 · As a pilot study towards vaccine development, the present work is designed for the calculation of LD50 to determine the challenge dose in ...

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, Riemerella anatipestifer ...

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.