Efficiency of conversion of B-carotene to vitamin-A is in the order
A. Rat > Ruminants > Pig > Poultry
B. Rat > Poultry > Pig > Ruminant
C. Rat > Poultry > Ruminants > Pig
D. Pig > Poultry > Ruminants > Rat
Answer: Option C
Solution (By Examveda Team)
The efficiency of conversion of B-carotene to vitamin-A is in the order: Rat > Poultry > Ruminants > Pig.The efficiency of conversion is maximum in Rat, then in poultry, followed by Ruminants and pig respectively.
The vitamin A equivalency ratio for β-carotene to vitamin A is currently estimated as 12 : 1, by weight (12 μg β-carotene is equal to 1 μg retinol), for plant sources of β-carotene in a mixed diet.
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