problems incubating and hatching pekin duck eggs

[shirley rosenbaum]

Hi I am trying to hatch Pekin duck eggs but I am getting a lot of deaths of the embryos. This is occurring after a week and sometimes after two weeks My hatching temperature is 37.4 and relative humidity is 52. The eggs are turned every one and a half hours Has anyone any advise??

 

[crazy4ChickensNducks]

@Texas Kiki