Topics:
Animal Refresher, Poultry Science
Cause of Encephalomalacia (Crazy Chick Disease) in Poultry
Encephalomalacia (Crazy Chick Disease) in poultry is caused due to deficiency of:
- Vitamin B₁ (Thiamine)
- Vitamin B₂ (Riboflavin)
- Vitamin E — Correct Answer
- Biotin
Explanation:
Correct Answer: Vitamin E
Encephalomalacia (Crazy Chick Disease) is caused by Vitamin E deficiency. It is characterised by softening of the cerebellum due to oxidative damage, leading to incoordination, falling over, and 'crazy' movements in chicks.
Vitamin E Functions in Poultry
- Potent antioxidant that protects cell membranes from oxidative damage (peroxidation of unsaturated fatty acids).
- Works synergistically with Selenium (Se).
- Essential for normal reproductive function in breeders.
Vitamin E Deficiency Conditions in Poultry
- Encephalomalacia (Crazy chick disease): Cerebellar softening; incoordination.
- Exudative diathesis: (with Se deficiency) — subcutaneous oedema due to capillary permeability increase.
- Muscular dystrophy (White muscle disease): (with Se deficiency) — degenerative changes in muscles.
Complete Vitamin Deficiency Disease List for Poultry
- Vit. B₁ (Thiamine): Polyneuritis (star-gazing)
- Vit. B₂ (Riboflavin): Curled toe paralysis
- Vit. E: Encephalomalacia / Crazy chick disease ✔
- Biotin: Fatty Liver Kidney Syndrome (FLKS)
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
