exam

Question 1

the proper calcium to phosphorus ration is

Answer 1

2:1

Question 2

when rumen unprotected fats are added to dairy cattle rations, which minerals should be supplemented?

Answer 2

calcium and phosphorus

Question 3

a producer is feeding 21 silage to his cow daily. the dry matter content is 30%. how much dry matter is being fed daily?

Answer 3

6.3

Question 4

atleast 2 or 3 pastures are needed in this system

Answer 4

intensive-management grazing

Question 5

the following are considered a by product feed

Answer 5

wheat feed
soy hulls
broiler litter

EXCEPT
fat

Question 6

nutrients (carbo, proteins, fats) are digestion and absorption most complex and most efficient?

Answer 6

carbohydrate and fat

Question 7

the amount energy that feed provides is represented as total digestible nutrients (TDN)

Answer 7

true

Question 8

in ruminant livestock, protein quantity is generally more important than protein quality

Answer 8

true

Question 9

it is a metabolic disorder that usually occurs during the last 6 weeks of gestation

Answer 9

pregnancy toxemia

Question 10

is the time between parturition and the time cows are allowed to be inseminated

Answer 10

4-16 hours

Question 11

percentage of pf rumen escape (by pass) protein?

Answer 11

urea

Question 12

in ruminants what is the primary source of glucose?

Answer 12

propionate

Question 13

sheep require a higher level of copper in their diet than goats do

T or F

Answer 13

true

Question 14

which of the following nutrients is considered the most expensive

Answer 14

protein

Question 15

the feed digestibility generally increases as crude fiber content increases

T or F

Answer 15

true

Question 16

nutrient maintenance requirements increase as the level of the animals activity decreases

T or F

Answer 16

true

Question 17

the recommended bull to open cow ratio

Answer 17

1 bull: 20-30 females

Question 18

which of the following provides approximately 2.25 times the amount of energy per unit of weight

Answer 18

fat

Question 19

deficiencies, excesses and imbalances of vitamins and mineral can limit animal performance and lead to various health problems

T or F

Answer 19

True

Question 20

as pasture plants matures, palatability and digestibility decline, thus it is important to rotate pastures to keep plants in a vegetative state

T or F

Answer 20

true

Question 21

it requires subdividing the land into paddocks, providing access to water, adjusting stocking rates and monitoring grazing duration

Answer 21

management-intensive grazing

Question 22

in this graving system, animals are moved to a new in no specific order and pastures are grazed when they are producing the most readily

Answer 22

rest rotation grazing system

Question 23

floor space requirement for ewes

Answer 23

10 to 14 sq. feet

Question 24

resistant to fermentative digestion in rumen?

Answer 24

cellulose

Question 25

hay tends to be a moderate source of protein and energy for sleep and goats T or F

Answer 25

true

Question 26

the volume of milk produced is determind mainly by the mammary glands uptake of

Answer 26

amino acids

Question 27

it is important to rotate pastures to keep plants in a vegetative state, it is because as pasture plants mature, palatability and digestibility improves. T or F

Answer 27

true

Question 28

grains tend to high in phosphorus and low in calcium T or F

Answer 28

true

Question 29

which of the following is not a normal end product of carbohydrate fermentation in the rumen

Answer 29

carbon dioxide

Question 30

limestone containing 36% calcium should be fed?

Answer 30

0.036 kg

Question 31

it is very unlikely that the same diet cam be fed to sheep and goats without risking copper toxicity in the goats or a copper deficiencies in thr sheep T or F

Answer 31

true

Question 32

developing a pasture and grazing management system for livestock requires planning as well as an understanding of

Answer 32

grazing system

Question 33

which of the following compounds are source of carbohydrates?

Answer 33

starch

Question 34

it is the primary source of nutrients for small ruminants during the winter or non-grazing season

Answer 34

hay

Question 35

a disease caused by a lack of calcium in the blood whichmay occur shortly after kidding, or it may occur a month or so later in the lactation period.

Answer 35

hypocalcemia