#151-200 Flashcards
The hormone BST is given to dairy cows:
After 200 days of lactation
For best results calves should be fed colostrum within__ hours of calving:
6 hours
Abortion in the last trimester of pregnancy is often caused by______.
Brucellosis
A condition of low blood calcium, which results in partial paralysis of the cow is known as _____.
Milk fever
When a small metal object punctures the stomach wall and causes an infection, the resulting disease is called_________.
Hardware disease
A disease transmitted through natural mating which causes abortion, low conception rates, and irregular heat cycles is_______.
Vibriosis
A disease causing air bubbles under the skin and usualy results in rapid death is _______.
Black leg
The condition in which the cow is giving more milk than nutrients that she is consuming in feed is called:
Negative net energy balance
As a rule of thumb when milk production_______, the milk fat content_____.
Decreases, increases
Feeding bulky feeds during the dry period and gradually bringing fresh cows back on grain are ways to prevent:
Displaced abomasum
The two U.S. dairy breeds that originated in the Channel Islands off the coast of France are:
Guernsey and Jersey
_______ reresents the largest daily input cost in producing milk.
Feed
The breed of dairy cattle that can be roan, all red, all white, or even spotted red and white is:
Milking Shorthorn
What state agency regulates waste management?
Texas Commission on Environmental Quality
What manure waste management puts solids in a bin and lets it degrade?
Composting
What manure waste management method runs manure across a press and squeezes the water out?
Solids removal
Which mineral functions in maintaining osmotic pressure, acid-base balance, and body fluid balance?
Sodium
Which mineral is found in high consentrations in soft issues such as the panrease, liver, and kidney?
Zinc
What is a nonfunctional mammary gland called?
Blind quarter
When doing classification scoring, a cow given the numerical vavue of 85-89.9 is classified as:
Very good
What is the most abundant mineral in the body?
Calcium
What mineral is necessary for hemoglobin formation?
Copper
A bovine female which has not had a calf is a:
Heifer
How many days after parturition should you wait before breeding a cow back?
60 days
What trait with the only positive genetic correlation to milk production?
Dairy character
Which dairy breed has a restriction for disallowing black markings?
Milking Shorthorn
What numerical value does a Holstein cow get when given the classification excellent?
90-100
What is the classification for a Holstein cow given the numerical value 80-84.9?
Good plus
What numerical value does a Holstein cow given the classification good?
75-79.9
What is the classification for a Holstein cow given the numerical value of less than 70?
Poor
What is the reasonable score for body condition at mid-lacation?
3.0
The rear quarters produce _____ % fo the daily milk yield.
60%
BST is the acronym for what compound?
Bovine Somatotropin
At what isoelectric point (point at which proteins have net sero charge) do caseins precipitate?
pH 4.6
How many grams of lactose are in an 8 oz. glass of milk?
10
Bulk tanks must be emptied and cleaned every ___ hours.
72
if you add sugar to a milk product, you must ___ F. by ___ degrees.
Increase, 5
Ceheddar cheese accounts for ____ % of American type cheeses made in the U.S.
80
The source of rennet ( a substance used in cheese making) is:
The abomasum of a milk fed calf
Legally you cannot make cottage cheese from raw milk, but you can make ____ from raw milk.
Cheddar cheese
_____ is a coumpound that is fermented for flavor in buttermilk and sour cream.
Citrate
98% of somatic cells are:
Leukocytes
Cows have ____ streak canals per teat.
1
Crude fiber in a dietary ration must be at least ___% or milk fat percent will decrease.
18
Which body part is located more towards the front of the animal?
Flank
The topline of a cow is made up of the :
Loin and chine
Which part of an animal touched the ground if he/she is walking on a correct set of feet and legs?
Sole
The top most part of a cow’s head is called the:
Poll
A switch on a cow is:
The bottom most part of the tail
Teh hooks and pins on an animal relate most closely to the:
Rump
