How to Keep Hens Healthy and Productive During Molting

Keeping hens healthy and productive is a significant concern for farmers. A recent study explored how molting affects hens in two distinct flocks. One group had access to free-range during molting, while the other did not. The findings revealed several key insights:

Egg Production and Health During Molting

• Egg Production Drop: Both groups experienced a decline in egg production during molting but recovered afterward.
• Weight Loss and Recovery: Hens lost weight during molting but regained it post-molt.
• Egg Quality Improvement: Egg quality improved after molting, indicating a positive outcome.

Bone Health Concerns

• Keel Bone Fractures: Despite stable or improved bone density, keel bone fractures became more common, suggesting molting may weaken bones in ways not always detectable.
• Calcium-to-Phosphorus Ratio: The study suggested that the dietary calcium-to-phosphorus ratio might not have been optimal, potentially limiting bone recovery.

Flock-Specific Findings

• Flock 2 (No Free-Range Access):
• Higher incidence of comb injuries, likely due to abrupt feeding practices and lack of outdoor space.
• Flock 1 (Gentler Molting Process):
• Displayed calmer behavior and better skin health.

Environmental and Management Factors

• Seasonal Variations: Molting occurred in different seasons, with weather and daylight changes potentially influencing the results.
• Management Practices: The study highlighted the importance of careful management during molting, as hens are particularly sensitive during this period. Methods like individual marking and X-raying were beneficial but require cautious handling.

Conclusion

The study underscores that molting outcomes are heavily influenced by management practices and environmental conditions. Farmers must prioritize gentle molting processes and optimal dietary conditions to ensure hen health and productivity.