Comparison of some biological characteristics of paramyxovirus-1 from different origin

Some biological characteristics of paramyxovirus-1 (PMV-1) isolated from muscovy duck, hemi-muscovy duck, penguin, pig and chicken were studied.Their haemagglutination range, haemagglutination titre.ELD50 to SPF chicken embryo and the pathogenicities to chicks and ducklings were detected respectively.The results showed that the haemagglutination ranges and litres of 5 isolates to red blood cell of 16 animals and person of O blood type were different, and the haemagglutination litres of them ranged from 24to 211, their ELD50 were 10-1~10-9.5, their MDT were from 51.0 hours to 113.4 hours,the ICPI of them were from 0 to 1.83,the palhogenicities of this viruses to Hyline cockerel were 62.5%, 8.3%, 54.2%, 12.5% and 95.8% respectively,and those to muscovy ducklings were 60%, 0, 53.3%, 0 and 86.7% respectively.