Investigation on Prevalence of Plasmodium elongatum in Captive Rare Cranes
To investigate the prevalence of Haemosporidia,the present study collected 284 samples from 12 species of captive rare cranes in five crane breeding bases from 2017 to 2021.Using nested PCR of the cytochrome b(Cyt b)gene and Blast sequence alignment,the results showed that the sequence of the Haemoproteus parasites was 100%similarity in comparison with Plasmodium elongatum(lineage DENVID02)by Blast.Combined with the morphology of the parasite,it was determined that the parasite belongs to P.elongatum.P.elongatum(lineage DENVID02)was detected in the six crane species,including black-necked crane(Grus nigricollis),Siberian crane(Leucogeranus leucogeranus),red crowned crane(Grus japonensis),hooded crane(G.monacha),common crane(G.grus),and white-naped crane(Antigone vipio),with a total detection rate of 8.45%(24/284).In addition,the infected crane individuals did not show obvious clinical symp-toms,and no treatment measures for the parasites were taken.In the follow-up monitoring,P.elongatum disappeared in one year or two years.All these indicated that the above cranes had innate resistance to the parasite.
Rare cranesPlasmodium elongatumPrevalenceDisease control
NETL
NSTL
万方数据
