“…In the present study, the average egg weight of the yellow Japanese quail (Coturnix japonica) was determined 12.23 g. The following weight values were previously reported: 11.28 g by Kul & Seker (2004); 11.06 g by Sezer (2007); 11.43 g by Alkan et al (2010); 11.14-12.84 g by Ozdemir & Inci, (2012); 11.52-12.30 g by Stojčić et al (2012); 8.19 g by Ojedapo (2013); 13.06 g and 11.48 g for meat and layer types, respectively, by Hrncar et al (2014); 12.70 g by Alasahan et al (2015); and 12.20-13.26 g by Hanusová et al (2016). Average eggshell weight was determined as 0.85 g in the present study, which was previously reported as 0.84 g by Kul & Seker (2004), 0.96 g by Sezer (2007), 1.00 (0.84-1.15 g) by Alkanet al (2010), 1.73-1.80 g by Stojčić et al (2012), 0.94 g by Ojedapo (2013), 1.09 g by Alasahan et al (2015), and 1.12-1.21g by Hanusová et al (2016). In the present study, albumen and yolk weights were determined as 6.93 g and 4.45 g, respectively, and previously reported as 6.75 g and 3.69 g by Kul & Seker (2004), 6.07-7.08 g and 3.42-3.72 g by Stojčić et al (2012), 6.35-7.44 g and 3.86-4.54 g by Ozdemir & Inci (2012), 4.95 g…”