Question: asking for veterinary expert
Answer: told him to keep the ducklings over the paddy husk used as litter material, place some news papper or thin thermocol papper over the litter material  ,  pre starter ration  to be continued / ors & vimeral can be given with drinking water / juice of ginger can be use as immuno booster / to minimize the infection -- enrocin 1 gm / lits of water for 4-5 days  / b complex like ambiplex , groviplex @ 10 ml / 100 ducklings for 3-4 days