H. Ghanem, E. Manaa, and R. Saleh, “Evaluation of Egg Quality Indices, Fertility, Hatchability % and Some Biochemical Parameters under the Effect of Some Environmental Stressors in Laying Hen”, Int. J. Poult. Sci., vol. 16, no. 8, pp. 310–316, Jul. 2017, doi: 10.3923/ijps.2017.310.316.