https://www.backyardchickens.com/t/37122/hatching-pullet-eggs-vs-large-eggs-what-is-your-experience
https://www.backyardchickens.com/t/619968/hatching-pullet-eggs
http://www.muranochickenfarm.com/2013/04/7-points-to-handling-hatching-eggs.html
http://ps.oxfordjournals.org/content/54/4/959.short
http://journals.cambridge.org/actio...ge=online&aid=618620&fileId=S0043933991000041
http://ps.oxfordjournals.org/content/38/2/272.short
http://ps.oxfordjournals.org/content/57/1/38.short
http://ps.oxfordjournals.org/content/60/10/2167.abstract
http://ps.oxfordjournals.org/content/76/7/1029.short
http://www.tandfonline.com/doi/abs/10.1080/00071667908416626?journalCode=cbps20
http://ps.oxfordjournals.org/content/74/9/1403.short
http://www.ncbi.nlm.nih.gov/pubmed/15869849
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200002
https://www.backyardchickens.com/t/619968/hatching-pullet-eggs
http://www.muranochickenfarm.com/2013/04/7-points-to-handling-hatching-eggs.html
http://ps.oxfordjournals.org/content/54/4/959.short
http://journals.cambridge.org/actio...ge=online&aid=618620&fileId=S0043933991000041
http://ps.oxfordjournals.org/content/38/2/272.short
http://ps.oxfordjournals.org/content/57/1/38.short
http://ps.oxfordjournals.org/content/60/10/2167.abstract
http://ps.oxfordjournals.org/content/76/7/1029.short
http://www.tandfonline.com/doi/abs/10.1080/00071667908416626?journalCode=cbps20
http://ps.oxfordjournals.org/content/74/9/1403.short
http://www.ncbi.nlm.nih.gov/pubmed/15869849
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200002