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| align="left" | This question was provided by [[:Category:Manson|Manson Publishing]] as part of the [[OVAL Project]].  See more [[Category: Small Mammals Q&A|Small Mammals questions]]

| align="left" | This question was provided by [[:Category:Manson|Manson Publishing]] as part of the [[OVAL Project]].  See more [[:Category: Small Mammals Q&A|Small Mammals questions]]

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|a4= Although the need for vitamin D3 rather than vitamin D2 is commonly understood, the high dietary requirement in this species is less recognized. Marmosets and some other New World primates have a 1,25 (OH)2 vitamin D3 receptor that is either blocked by a protein or is much less sensitive to vitamin D3. The blood concentration of vitamin D3 needs to be high to compensate for the presence of this blocking protein.

|a4= Although the need for vitamin D3 rather than vitamin D2 is commonly understood, the high dietary requirement in this species is less recognized. Marmosets and some other New World primates have a 1,25 (OH)2 vitamin D3 receptor that is either blocked by a protein or is much less sensitive to vitamin D3. The blood concentration of vitamin D3 needs to be high to compensate for the presence of this blocking protein.

Maintain a high blood concentration of vitamin D3 in the marmoset by administering approximately 1,100 iu/kg/day (compared to 11 iu/kg/day in dogs) of vitamin D3. In addition, expose New World primates to unfiltered sunlight to encourage production of vitamin D3 in the skin. It is may be possible to provide some UV light using daylight spectrum light bulbs.

Maintain a high blood concentration of vitamin D3 in the marmoset by administering approximately 1,100 iu/kg/day (compared to 11 iu/kg/day in dogs) of vitamin D3. In addition, expose New World primates to unfiltered sunlight to encourage production of vitamin D3 in the skin. It is may be possible to provide some UV light using daylight spectrum light bulbs.

|l4= HyperparathyroidismTreatment

|l4= Hyperparathyroidism#Treatment

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