(1)
Akpa, G.; Kaye, J.; Adeyinka, I.; Kabir, M. The Relationships Between Laying Age and Repeatability of Egg Quality Traits in Japanese Quails (Coturnix Coturnix japonica(). Int. J. Poult. Sci. 2008, 7 (6), 555–559. https://doi.org/10.3923/ijps.2008.555.559.