220 



POULTRY Ph'ODrCTlOX 



111 luitclies aA'fr;i,n'iiig aliout 50 ])ct i-ciit (if lutal ru.i;^ srt, 

 apprdxiiiiately -iU per cent of tlie dcatlia (jcciir diiriiiu' tlie 

 (irst thirteen days of inculiation and alxjiit CiO ])er cent die 

 between tlie fdurteentli and twent\"-iirst da\^ imdusixe. 



Vl<:. 101 



Pay,^ Of IncuEiATirin 



jiv.snitatinn d' I hr di^l i il mlii .n ,,l iri.iil 

 ..lata nl l'a\ii.' ) 



ir iimrialin-. 



This gives an appruxhnate hasis for eah'idatiiiL;- on the 

 fourteenth (hiy the prohahle numlier of chicks whieh will 

 hatch in the e\ent of a. noniial run liy the inciiliator 



Routine of Management. — The practical application of the 

 principles of incubation will vary under diflercut conditions 



