Crazy chick disease in poultry breed is caused due by a nutritional deficiency of which the following elements?

📝 Additional Information
→ Crazy chick disease in poultry is caused due to the deficiency of vitamin E.
→ This occurs in chickens 2 to 3 weeks of age. Typical signs are muscular weakness: frequent falling, head, and neck pulled towards the back, paralysis, and eventual death because of starvation.
→ A lack of vitamin B2 (riboflavin) causes curled toe paralysis.
→ Cannibalism is seen in poultry due to the deficiency of sodium chloride.
→ Cracked feet are caused due to the deficiency of biotin.
→ Degnala and Alkali diseases are caused due to the toxicity of selenium.