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. 2020 Mar 27;7:128. doi: 10.3389/fvets.2020.00128

Figure 1.

Figure 1

Experimental design. Treatments (Control and Maternal Stress) were applied to each strain (Commercial Brown 1 and 2, Commercial White 1 and 2, and Pure Line White Leghorn) of the breeder flocks at three different ages (32, 52, and 72 weeks). The offspring of each maternal age were statistically treated replicates.