Over Supplementation of Vitamins is hazardous

Common practice in Poultry is additional Supplementation of vitamins and antibiotics besides giving regular doses, whenever there is slight fluctuation in egg production. In some regions there is practice of additional Supplementation course for a week or so every month.
Modern nutritionists don't recommend this because every vitamin, mineral or antibiotic has a toxic effect after some limit. Fat soluble vitamins like vitamin A, Vitamin D and Vitamin E are stored in the liver and can be the strongest reason for fatty liver syndrome. Similarly water soluble vitamins like vitamin B and Vitamin C produces Heat stress when used in overdoses.
Haphazard use of Antibiotics should also be avoided. Resistance to most of the antibiotics is felt against most of the antibiotic salts. So these should be avoided unless required. Balanced diet feeding is the only natural remedy to this problem.