Poultry Vitamin Deficiencies: Identifying Symptoms & Recovery Protocols
Identify vitamin deficiencies in broilers and layers. Curled toe paralysis, rickets, crazy chick disease, and multivitamin dosing protocols.
Visible Symptoms
Chicks walking on hocks with toes curled inward (curled toe paralysis); soft rubbery beaks and leg rickets; head retraction and tremors.
Primary Causes
- Vitamin B2 (Riboflavin) deficiency causing curled toe paralysis.
- Vitamin D3 and Calcium deficiency causing rickets and lameness.
- Vitamin E deficiency causing encephalomalacia (crazy chick disease) and muscular dystrophy.
Frequently Asked Questions
Why do vitamin deficiencies appear even when using commercial feed?
Feed stored in hot, humid sheds (> 35°C) suffers rapid vitamin oxidation and degradation. In summer, water-soluble supplementation ensures adequate intake.