4constraint to OWAI P U.Pets of small ruminants as a major, small ruminant production in cross river state Nigria [J ] .J Food Agric Environ, 2007,5 ( 1 ) : 102-104.
5ADAMA D.Peste des petits ruminants [EB/OL]. (2014- 12-20).Http://www.indiaveterinary community.com/profp erspective.
6Centre for Food Security and Public Health.Peste des petitsruminants. [ EB/OL ]. (2011-04-19).Http://www.cfsph.i- astate.edu/DiseaseInfo/disease.
7SARAVANAN P,$EN A,BALAMURUGAN V,et al. Comparative efficacy of peste des petits ruminants (PPR) vaccines [J ] .Biologicals, 2010,38 (4) :479-485.
