Exam 4

Question 1

Edema often occurs in heifers after they freshen; this can be caused by feeding _____ during the close-up dry period

Answer 1

salt

Question 2

the reccomended amount of ruminally undegradable protein fed to a lactating dairy cow is ___% of the total dietary CP?

Answer 2

35 or 40

Question 3

grass hay is often fed to dairy cattle during the close-up dry period, which helps the prevention of ____bc it is low in Ca?

Answer 3

milk fever

Question 4

____ and milk production will have the greatest effect on the water requirements of a lactating dairy cow?

Answer 4

humidity

Question 5

the minimum percentage of the ration that needs to be forage during the early lactation period is __%?

Answer 5

18-19

Question 6

during early lactation, a dairy cow will compensate for inadequate energy intake by _____ of body energy reserves

Answer 6

mobilization

Question 7

____ is caused by the mobilization of body energy reserves from adipose tissues and malfunctioning of the TCA cycle?

Answer 7

ketosis

Question 8

blockage of the digestive tract that occurs in dairy cattle just after calving is referred to as _____

Answer 8

displaced abomasum

Question 9

feeding high levels of potassium can increase the incidence of _____ in lactating dairy cattle?

Answer 9

milk fever

Question 10

cows that are dry for less than 40 days will produce_____milk in the next lactation?

Answer 10

less

Question 11

The last two months of the gestation period of a dairy cow will account for approximately _____% of the total fetal growth.

Answer 11

67

Question 12

Plant protein sources used in milk replacers will not __________ in the stomach.

Answer 12

curdle

Question 13

Dairy replacement heifers, between weaning and breeding, should gain between ____ and
____ lb per day.

Answer 13

1.75-2

Question 14

Average colostrum contains __________ times as much protein as ordinary milk, but is lower in lactose than average whole milk.

Answer 14

4

Question 15

Calves must __________ their head in over to activate their esophageal groove.

Answer 15

elevate

Question 16

__________ can cause excessive losses of water and minerals in young calves.

Answer 16

diarrhea

Question 17

Typical rations fed to replacement heifers between breeding and calving are high in __________.

Answer 17

roughages

Question 18

Plant protein sources used in milk replacers can contain __________ which can cause the calves to have undesirable reactions.

Answer 18

trypsin inhibitors

Question 19

The dietary protein quality in milk replacers can be __________ as the calf gets older.

Answer 19

decreased

Question 20

Young calves are fed like __________ since they don’t yet have a functional rumen.

Answer 20

nonruminants

Question 21

The primary use of dietary nutrients of a replacement heifer between weaning and breeding is for __________.

Answer 21

growth