Exam 4 Flashcards
(21 cards)
Edema often occurs in heifers after they freshen; this can be caused by feeding _____ during the close-up dry period
salt
the reccomended amount of ruminally undegradable protein fed to a lactating dairy cow is ___% of the total dietary CP?
35 or 40
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?
milk fever
____ and milk production will have the greatest effect on the water requirements of a lactating dairy cow?
humidity
the minimum percentage of the ration that needs to be forage during the early lactation period is __%?
18-19
during early lactation, a dairy cow will compensate for inadequate energy intake by _____ of body energy reserves
mobilization
____ is caused by the mobilization of body energy reserves from adipose tissues and malfunctioning of the TCA cycle?
ketosis
blockage of the digestive tract that occurs in dairy cattle just after calving is referred to as _____
displaced abomasum
feeding high levels of potassium can increase the incidence of _____ in lactating dairy cattle?
milk fever
cows that are dry for less than 40 days will produce_____milk in the next lactation?
less
The last two months of the gestation period of a dairy cow will account for approximately _____% of the total fetal growth.
67
Plant protein sources used in milk replacers will not __________ in the stomach.
curdle
Dairy replacement heifers, between weaning and breeding, should gain between ____ and
____ lb per day.
1.75-2
Average colostrum contains __________ times as much protein as ordinary milk, but is lower in lactose than average whole milk.
4
Calves must __________ their head in over to activate their esophageal groove.
elevate
__________ can cause excessive losses of water and minerals in young calves.
diarrhea
Typical rations fed to replacement heifers between breeding and calving are high in __________.
roughages
Plant protein sources used in milk replacers can contain __________ which can cause the calves to have undesirable reactions.
trypsin inhibitors
The dietary protein quality in milk replacers can be __________ as the calf gets older.
decreased
Young calves are fed like __________ since they don’t yet have a functional rumen.
nonruminants
The primary use of dietary nutrients of a replacement heifer between weaning and breeding is for __________.
growth
