questions:   query regaring incubation of duck egg  
 answers:  the incubation period of duck egg is 28 days ,[ chicken egg 21 days ] - the temperature is generally maintain during incubation varies  98-101  degree f.  candlingshould be  done before incubation , round , efor natural brooding the egg shuld be kept in rice bag before longated egg should not be select for incubation , normal weight of egg should be 56-58 g , -