Vitamin B3 Flashcards

1
Q

What is vitamin B3?

A

niacin

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2
Q

What is niacin required for?

A

the enzymes that are essential for the metabolism of carbs, proteins, and lipids

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3
Q

What does niacin deficiency present as?

A

poor growth, dry rough skin, diarrhea from intestinal cell necrosis and ulceration

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4
Q

What can some animals convert into niacin?

A

tryptophan, but it is insufficient to supply the needs of the animal

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5
Q

What are dietary sources of niacin?

A

soybean meal and some other plant products

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6
Q

What is pellagra?

A

black tongue caused by deficiency of tryptophan or naicin

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7
Q

What species usually gets pellagra and why?

A

dogs because they are fed on a corn based diet

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8
Q

What are symptoms of pellagra?

A

black tongue, rough, and dry skin and they lose papillae on their tongue

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9
Q

How can niacin prevent ketosis?

A

because it is anti-lipolytic and prevents the build up of liver fat which leads to ketosis

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10
Q

When should niacin be fed in order to prevent ketosis?

A

around the time of calving because the high demands of milk production and poor feed intake leads to insufficient bacterial niacin production in the rumen

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11
Q

Other than ketosis, what can niacin be used for?

A

to treat yeast and staph infections

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