Niacin Deficiency is a condition affecting chickens. Niacin deficiency causes stunting, neurological signs, and skin problems. However, it is easily prevented through proper feed formulation and rapidly improves with dietary correction. This comprehensive guide covers symptoms, causes, treatment, and prevention.
What It Looks Like
Look for these signs in affected birds:
Skin and feathers: Feathers appear thin, short, or rough; skin becomes scaly or inflamed
Face, mouth, and feet: Skin around beak and between toes becomes red, swollen, or scaly
Overall development: Chicks grow slowly and remain smaller than healthy peers
Nervous system and legs: Bird staggers or walks abnormally; may have difficulty perching
Legs and skeleton: Legs become bowed or twisted; bird may struggle to walk
Intestinal tract: Loose, watery droppings may occur
Likely Causes
- Inadequate dietary niacin (vitamin B3) in feed formulation
- Poor quality feedstuffs low in bioavailable niacin
- Lack of vitamin/mineral premix in home-formulated feed
- Niacin is essential for energy metabolism and nervous system function
- Young growing birds have increased niacin requirements
About This Condition
Body System Affected: Nervous system and connective tissue (skin and bone)
Severity Level: moderate
Contagious: No, not contagious between birds
Affected Age Groups: chicks, pullets
What to Do
Switch immediately to commercial poultry feed meeting NRC niacin requirements (approximately 28–the appropriate amount/kg for growing birds). If formulating your own feed, ensure inclusion of a complete vitamin/mineral premix. Affected birds recover quickly from nutritional deficiency once diet is corrected. Neurological signs may persist if severe.
When to See a Vet
See a vet if your flock shows poor feathering, neurological signs, or stunting. Your vet can evaluate the feed and recommend dietary adjustments.
Prevention
Use high-quality commercial poultry feed formulated to meet NRC nutrient standards. If mixing your own feed, include a complete vitamin/mineral premix. Avoid poor-quality feedstuffs. Ensure feed is fresh (niacin degrades with age and storage).
Frequently Asked Questions
Q1: What does niacin do in chickens?
Niacin (vitamin B3) is essential for energy metabolism, DNA synthesis, and nervous system function. Deficiency impairs growth, causes neurological problems, and damages skin and feathers.
Q2: Can niacin deficiency be reversed?
Yes, nutritional signs (feathering, diarrhea) improve within 1–2 weeks of dietary correction. Neurological signs and skeletal deformities may persist or be permanent if severe.
Q3: What foods are high in niacin?
Niacin is found in whole grains, meat meal, fish meal, and legumes. Commercial vitamin/mineral premixes provide concentrated niacin. Yeast is also a good source.