Polyunsaturated Fatty Acids Flashcards

1
Q

What enzyme do cats lack, that makes them unable to elongate linoleic acid?

A

delta 6 desaturase.

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2
Q

Because cats can’t elongate linoleic acid, what fatty acid must be present in their diet?

A

arachidonic acid.

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3
Q

What fatty acid is required to produce ceramides? What animals require ceramides?

A

linoleic acid. All mammals require it.

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4
Q

This PUFA is rquired by dogs, NOT cats.

A

alpha-linolenic acid

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5
Q

What is arachidonic acid used for? Do dogs require this as well?

A

Needed for inflammation, the immune system, and cell membranes (makes 20-25% of total FA of cell membranes). Dogs do not require this.

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6
Q

If you start administering eicosapentaenoic acid, how long until you see the benefits?

A

12-14 WEEKS.

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7
Q

What are some clinical signs of essential fatty acid deficiency?

A

poor growth and weight gain, cutaneous changes, infertility and poor wound healing.

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8
Q

What are the 2 most important series of PUFA?

A

n-3 and n-6

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