Evaluation of Newcastle disease antibody level after different vaccination regimes in three districts of Amhara Region, North-western Ethiopia
Hailu Mazengia1, Esayas Gelaye2* and Mohamed Nega1
1Andasa Livestock Research Center, P. O. Box 27, Bahir Dar, Ethiopia.
2National Veterinary Institute, P. O. Box 19, Debre zeit, Ethiopia.
Email: [email protected]