snow incubation temp effects on pigment

[boywonder]

does anybody know if cooler incubation temps change the amount of yellow pigment mack snows develope?
and do cooler temps also make more black pigment in macks?

 

[supperl]

Dunno on the yellow pigments but from breeding MSS*Hypo we´ve got Mack Hypos highlywhite with nearly no dark spots but with yellow on them(not too many yellow).