1. Almeida Paz I.C.L., Bruno L.D.G. (2006). Bone mineral density: review. Rev. Bras. Cienc. Avic., 8, 2, DOI: 10.1590/S1516-635X2006000200001.
2. Applegate T.J., Lilburn M.S. (2002). Growth of the femur and tibia of a commercial broiler line. Poultry Sci., 81: 1289-1294.
3. Boskey A.L., Wright T.M., Blank R.D. (1999). Collagen and bone strength. J. Bone Miner. Res., 14: 330-335.
4. Calik J., Krawczyk J., Świątkiewicz S., Gąsior R., Wojtycza K., Połtowicz K., Obrzut J., Puchała M. (2017). Comparison of the physicochemical and sensory characteristics of Rhode Island Red (R-11) capons and cockerels. Ann. Anim. Sci., 17, 3: 903-917.
5. Candelotto L., Stratmann A., Gebhardt-Henrich S.G., Rufener Ch., van de Braak T., Toscano M.J. (2017). Susceptibility to keel bone fractures in laying hens and the role of genetic variation. Poultry Sci., 96: 3517-3528.