"Runts" in the growing birds (usually detected by three to four weeks of age or older).
|Probable Cause||Suggested Corrective Measure|
| Poor egg quality involving excessive shell contamination,
usually floor eggs or cracked eggs.
| Set only clean, uncracked eggs. Check hatcher
sanitation procedures. Make sure hatcher and hatch trays have been
thoroughly cleaned, disinfected, and fumigated after each hatch.
| Poor hatchery sanitation, particularly during
|Follow all approved hatchery sanitation techniques. Make sure contamination does not build up. Do not recirculate foul air.|