Exam 3 Advanced Beef Production Chapter 20 & 21: Vitamins & Feed Consumption - Nutrient Content

Cattle have the ability to store Vitamin A __-___ months in the liver when levels in the feed are high.

2-4

What are signs of Vitamin A deficiency?

reduced feed intake

rough hair coat

edema in the joints

blindness

poor reproduction

abortions

What Vitamin is required for calcium and phosphorus absorption, normal mineralization of bone, and the mobilization of calcium from the bone.

Vitamin D

Vitamin D deficiency results in ?

abnormal bone development and growth

The vitamin D requirement is ____ IU per pound of dry diet.

125

what vitamin functions in the formation of structural components of membranes in the body and as an antioxidant. it is linked closely to selenium in maintaining the functional integrity of the muscles of the body.

Vitamin E

what vitamin is essential for the production of prothrombin, which is required for blood clotting.

Vitamin K

______, produced by mold on sweet clover hay, interferes with Vitamin K. Affected animals may bleed to death internally.

Dicumarol

What are the fat soluble vitamins?

A

D

E

K

What are the water soluble vitamins?

B

What vitamin includes thiamine, biotin, riboflavin, niacin, pantothenic acid, pyridoxine, folic acid, B12, and choline

B

what are symptoms of vitamin B deficiency?

poor appetite

slow growth

poor condition

a deficiency of ________ produces a central nervous system disorder known as polio characterized by convulsions.

Thiamine

(concentrates/roughages) high fiber, low energy

roughages

(concentrates/roughages) low in fiber, high in energy

concentrates

all of the components in feedstuff besides water is termed ____

dry matter

what is the primary source of energy?

carbohydrates

carbohydrates consist of:

cellulose

sugars

starches

hemicellulose

lignin

T/F: lignin reduces the digestibility of the other fiber fractions

true

other than carbohydrates, what is another major source of energy in feedstuffs?

fat

Fats have ____ times the energy of carbohydrates

2.25

What is the required amount of Vitamin A for calves?

20,000 IU

what is the required amount of Vitamin A for dry and lactating cows?

Dry: 30,000 IU

lactating: 45,000 IU

What is IU?

international units