- Oct 13, 2013
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Top pic is a slab sided egg, with the pattern on it, and the bottom pic are " white banded" eggs.
Thank you so much for such great information, do our birds need to visit the vet for the infectious bronchitis ?Top pic is a slab sided egg, with the pattern on it, and the bottom pic are " white banded" eggs.
1. White banded egg. These eggs are the result of two eggs entering and making contact with each other in the shell gland pouch. When this happens, normal calcification (egg shell formation) is interrupted and the first egg that entered the pouch will get an extra layer of calcium, seen as the white band marking. Causes for this are:
- Stress in the flock;
- Changes in lighting, for example adding artificial light in the coop to encourage laying over winter;
- Diseases such as infectious bronchitis.
11. Slab sided or flat sided egg. When two eggs enter the shell gland pouch shortly after another, normal calcification is interrupted. The second egg will not be as complete as the first and may be flattened at the side where the eggs made contact, resulting in a flat or slab side. Causes are:
- Disease, such as infectious bronchitis;
- Stress, frights and disturbances;
- Overcrowding in coop/run;
- Sudden large increase in daily light hours, for example when supplementing light during winter months.
https://www.backyardchickens.com/a/common-egg-quality-problems