Exam 2 Questions

Front 1

Major essential amino acid in milk

Back 1

Leucine

Front 2

The largest dairy cattle breed of the 5 major breeds

Back 2

Holstein

Front 3

Lysine

Back 3

The limiting essential amino acid in cereals such as rice and wheat

Front 4

Jersey

Back 4

Milk fat globules are larger in size than holstein

Front 5

Oxytocin

Back 5

So-called milk let down hormone

Front 6

The fats of plant origin in the cow's diet contain a larger % of unsaturated fatty acids than the fat of cow's milk

Back 6

True

Front 7

Name the 3 solids milk constituents synthesized in the cow's udder and not filtered from her blood

Back 7

Lactose, casein, fat

Front 8

Casein

Back 8

Is the principal protein in milk on a percentage basis and accounts for about 80% of the milk proteins

Front 9

Enoic

Back 9

refers to unsaturated fatty acids

Front 10

Colostrum, immediately after parturtion, contains a much greater % of which one of the following constituents than is present in normal milk?

Back 10

Total protein

Front 11

Kappa

Back 11

Is the casein fraction in milk that acts as a stabilizing factor in that it holds the entire casein complex in/as an colloidal dispersion in milk

Front 12

4 fatty acids that, when released during milk fat decomposition, result in a rancid off-flavor

Back 12

Butyric
Caproic
Caprylic
Capric
C4-C10

Front 13

Colostrum as compared to milk is rich in:

Back 13

Globlin which carries antibodies to the baby calf to protect against disease-producing organisms

Front 14

Casein precipitated by what in milk?

Back 14

Rennin

Front 15

Based on weight % basis, list in order the 4 major fatty acids in milk

Back 15

Oleic
Palamitic
Stearic
Mystric

Front 16

Last milk drawn

Back 16

Contains the highest % fat

Front 17

Commerical casein is made from

Back 17

Skim

Front 18

Peanut oil

Back 18

contains a greater % of oleic acid

Front 19

Why are products such as sheftene C2, Casec, or Ca-Sal recommended for addition to bread or cereal products?

Back 19

Because cereal products are deficient in lysine and these products contain lysine

Front 20

Highest % fat content

Back 20

Jersey

Front 21

Lowest % fat content

Back 21

Holestein

Front 22

What happens to the % fat in cow's milk during lactation period

Back 22

% fat increases

Front 23

Dairy cattle rumen fermentation

Back 23

To maintain the normal % fat content in the milk, more acetic acid should be synthesized in the rumen

Front 24

Lecithin

Back 24

Is the major phospholipid in milk on a percentage basis

Front 25

Cholesterol

Back 25

Is the principle sterol in milk

Front 26

A gallon of milk weighs

Back 26

8.6 lbs

Front 27

Which milk constituent supplies about HALF of the total calories supplied by milk?

Back 27

Fat

Front 28

Ricotta cheese is made from

Back 28

Whey

Front 29

The specific gravity of milk at 60F

Back 29

1.032

Front 30

Latest figures show that the lbs of milk produced/year in the US is about

Back 30

170 billion

Front 31

A pound of milk contains more

Back 31

phosphorus

Front 32

Annually, the average dairy cow in the US produces how many gallons of milk/day?

Back 32

7 gallons

Front 33

The number of dairy cows in the US is about

Back 33

9 million

Front 34

It takes about 20 lbs of skim to make 1 lb of cottage cheese

Back 34

False

Front 35

US: Per capita sales/consumption of hard cheese is more than that of cottage cheese

Back 35

True

Front 36

The specific gravity of milk fat

Back 36

Is less than milk

Front 37

27%

Back 37

Of the US milk production is sold as fluid milk and cream

Front 38

The gestation period

Back 38

281 + or - 5 days

Front 39

The lactation period should last

Back 39

305 days

Front 40

The dry period should last

Back 40

60 days

Front 41

3 major causes of salty milk

Back 41

Mastitis
Before lactation period
After lactation period

Front 42

Progesterone

Back 42

Is the hormone responsible for alveoli regeneration just prior to parturition

Front 43

Milk as it comes from the cow is deficient in what 2 major vitamins

Back 43

Vitamin C and D

Front 44

Milk as it comes from the cow is deficient in what 3 minerals

Back 44

Iron
Copper
Mn

Front 45

Colostrum contains more casein, chloride and lactose than normal milk

Back 45

False

Front 46

% fat in milk is usually highest in

Back 46

Winter

Front 47

Isoelectric point of casein is at a pH of

Back 47

4.6

Front 48

Vitamin D

Back 48

Rickets

Front 49

Pellagra

Back 49

Niacin

Front 50

Night blindness

Back 50

Vitamin A

Front 51

Scurvy

Back 51

Vitamin C