Fig. 1. The ultrastructure of a translucent egg shell with alignment of mammillae.
Fig. 2. The ultrastructure of a normal egg shell.
Fig. 3. Depression in the mammillary caps of translucent egg shell.
Fig. 4. Type B bodies in the translucent patch of egg shell.
and non penetrated egg shells inoculated in 103 cfu of E. coli (Fig. 6).
The bacterial penetration was recorded along the translucent patches
of the egg shell.
3.3. Effects of egg shell translucency on S. Infantis penetration
There were no significant differences between the translucency
score of total egg shells inoculated at different dilutions and incubated
at various temperatures. At 37 °C, 7 out of 10 eggs inoculated in
Fig. 5. Penetration pattern of E. coli across translucent and non translucent egg shells at
37 °C.
Fig. 6. Penetration pattern of E. coli across translucent and non translucent egg shells at
20 °C.
Fig. 7. Penetration pattern of S. Infantis across translucent and non translucent egg
shells at 37 °C.
Fig. 8. Penetration pattern of S. Infantis across translucent and non translucent egg
shells at 20 °C.