Topics:
Animal Refresher, Poultry Science
Vitamin Not Synthesized in Poultry
Which vitamin is NOT synthesized in poultry?
- Vitamin A
- Vitamin B
- Vitamin K
- Vitamin C — Correct Answer
Explanation:
Correct Answer: Vitamin C
Vitamin C (Ascorbic acid) is NOT synthesized in poultry and must be supplemented in the diet under stress conditions. It is also notably absent in eggs, meat, and milk.
Vitamin C in Poultry
- Under normal non-stressful conditions, poultry can synthesize Vitamin C in the kidney and liver (unlike humans who lack L-gulonolactone oxidase).
- However, under heat stress, disease stress, or high production phases, the synthesis is inadequate and supplementation is needed.
- Poultry generally do NOT require Vitamin C in the feed under normal conditions — hence it is listed as 'not required in feed' from a dietary supplementation standpoint.
Other Vitamins Not Required in Poultry Feed
- Niacin (Vitamin B₃): Generally NOT required in poultry feed because it can be synthesized from tryptophan (precursor) in poultry.
- All other vitamins (A, D, E, K, B1, B2, B6, B12, Biotin, Folic acid, Pantothenic acid) must be supplied in the diet.
📚 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.
