A Guyanese farmer notices that his young chickens are developing rickets despite being fed a diet containing adequate calcium. Which additional nutrient is MOST likely deficient in the feed?

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Question

A Guyanese farmer notices that his young chickens are developing rickets despite being fed a diet containing adequate calcium. Which additional nutrient is MOST likely deficient in the feed?

Accepted Answer

Vitamin D — Award 1 mark for identifying that vitamin D is required for calcium absorption. Without vitamin D, calcium cannot be properly absorbed and utilised for bone formation, leading to rickets. A is incorrect — vitamin A deficiency causes night blindness. B is incorrect — B12 deficiency causes anaemia. C is incorrect — vitamin C deficiency causes scurvy.

Answer

Vitamin A

Answer

Vitamin C

Answer

Vitamin D

Answer

Vitamin B12

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