2014 Major Nutrients - Fats

Question 1

When listing the five essential nutrients, which two nutrients are combined together to form “energy”?

Answer 1

fats and carbohydrates

Question 2

What is most likely to be the limiting nutrient for the high producing dairy cow?

Answer 2

energy

Question 3

Name the most concentrated energy source in dairy cattle rations.

Answer 3

fats

Question 4

Name the two major sources of energy for the dairy cow.

Answer 4

fats and carbohydrates

Question 5

What are the building blocks of fats and lipids?

Answer 5

fatty acids are the building blocks of fats and lipids

Question 6

When comparing fats to starches, fats how many more times the energy value of starch?

Answer 6

fats contain 2.25 times more energy

Question 7

As a percentage, what is the correct maximum level of fat in a lactating cow’s dairy ration?

Answer 7

lactating dairy cow’s rations should be no more than 5-7% fat

Question 8

What is another term for fat?

Answer 8

lipid

Question 9

What nutrient is often added to feedstuffs to increase its energy density?

Answer 9

fats

Question 10

What are two reasons why a dairy farmer may add fat supplements to the dairy cattle’s rations?

Answer 10

increase absorption of fat-soluble vitamins, reduce dustiness of feed

Question 11

Young dairy animals require large amounts of energy, therefore which nutrient is an essential part of their diet?

Answer 11

fats

Question 12

Fats should make up what percentage of the young dairy animal’s diet?

Answer 12

fats should be 10-25% of their diet

Question 13

Name two sources of fats in a ruminant’s diet.

Answer 13

whole cottonseeds, whole soybeans

Question 14

In dairy cattle rations, dairy farmers use blends of fats from what two sources?

Answer 14

farmers use a blend of animal and vegetable fats in dairy cattle rations

Question 15

Animal fat is also known as what?

Answer 15

tallow

Question 16

Rumen fermentation and dry matter intake can be negatively effected by too much of which nutrient?

Answer 16

fat

Question 17

Feed producers of dairy cattle rations, make a special formula of what nutrient, so that it has no effect on rumen?

Answer 17

feed producers make a special formula of FATS that has no effect on rumen fermentation

Question 18

What are the two classifications of fats?

Answer 18

saturated, unsaturated

Question 19

If a fat is said to be saturated, then it contains the maximum number of what?

Answer 19

hydrogen atoms

Question 20

By definition of a saturated fat, a single bond exists between each of which two elements?

Answer 20

a single bond exists between each of the CARBON and HYDROGEN atoms

Question 21

If a fat is said to be unsaturated, then at least one pair of what type of atoms, is connected with a double bond?

Answer 21

at least one pair of CARBON atoms has a double bond

Question 22

When a fatty acid does not contain the maximum number of carbon atoms, the fatty acid is said to be what?

Answer 22

unsaturated

Question 23

When a fatty acid contains the maximum number of carbon atoms, the fatty acid is said to be what?

Answer 23

saturated

Question 24

During rumen fermentation, what happens to most of the unsaturated fats?

Answer 24

most unsaturated fats are converted to saturated fats

Question 25

Most meat and milk provided by ruminants, contains what classification of fat and why?

Answer 25

Most meat and milk are made of saturated fats because processes in the rumen convert unsaturated fats into saturated fats