BT Bek 8b(39) :הי דזגתא חיורתי והי דזגתא אוכמתי‏ : which (egg) is of a white hen, and which is of a black hen?
See the entire entry for zāḡ, zāḡā n.m. young cock or hen

BT Bek 8b(39) :תרי ביעי הי דזגתא חיורתי והי דזגתא אוכמתי‏ : two eggs, one of a white hen, one of a black hen
See the entire entry for zgh n.f. hen; name of a constellation = Aldebaran