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AVS 323 Exam 2 Quizzes
Terms in this set (30)
Which of the following is NOT something you should look for when assessing if a cow is lame or not?
(All are things you should look for)
Amount of head bob
Flatness of back when standing and walking
The most common contagious/infectious hoof problem
Grass is what cows were designed to stand on, therefore, pasture-based dairy systems do not suffer from lameness
One of the biggest issues with lameness is that producers are not identifying cows that are at the beginning stages of being lame. This can be remedied by more training in visual assessment of cows.
ALL cows go through a period of negative energy balance after calving. If not fed/managed properly, these cows can be at risk of an array of metabolic disorders
According to Dr. Balz, veterinarians play the most crucial role in preventing and treating most problems on dairy farms
Which of the following disorders would you need to administer Ca, whether that be orally, subcutaneously, or intravenously
(Caused by LOW BLOOD levels (hypocalcemia); High demand for calcium from colostrum and milk cause a sudden decrease in circulating calcium (Ca) levels in blood)
Which of the following is NOT true regarding metritis?
S. aureus is the major bacteria involved
Most commonly follows a retained placenta
Should be treated with antibiotics
Can have a negative effect on subsequent reproductive performance
Select all of the following that are NOT true regarding rBST
It is illegal in the USA
This growth hormone can affect humans which is why it is not allowed in organic systems
It causes a second peak in milk production for animals treated with it
The negative animal welfare consequences are the reasons it has been prohibited in the EU and Canada
Which of the following is NOT true regarding organic milk?
It can't stay on the shelf as long as conventionally-produced milk because it lacks preservatives
It will have higher levels of CLA than conventionally-produced milk
It will have been UHT pasteurized
The amount of vitamins may be reduced due to the way it has been processed
What Japanese breed is known for the extreme marbling?
The __________________ gene is inactivated in 'double muscled' breeds causing them to grow excessive amounts of lean muscle.
What is the top PRODUCING country of beef?
What is the US beef grading system based off of?
Age of animal and degree of marbling
The average herd size of cow/calf farms in the US is 284 cows as of 2019
(The average beef cow herd is 40-100 head of dams (equivalent number of calves))
The 'double muscled' breeds are a popular breed in the US as we emphasize lean muscle in our beef system and they have an abundance of this.
What country has the largest population of Wagyu outside of Japan?
There are about 103 million head of cattle slaughtered each year in the USA
(Beef industry has 103 million head; not all these animals are slaughtered each yea)
What is the most important culling criteria for brood cows?
What is the most popular beef breed in America?
Where and when is it most likely producers will see animals suffer from BRD?
At the feedlot; just around arrival
Select all of the following that are NOT true regarding beef animal feeding
Cattle being backgrounded are fed high grain diets
A 'creep' is used to feed beef cow dams feed that the producer doesn't want the calf eating
At the feedlot, adequate feedbunk space for every animal is crucial
A bull needs a higher plane of nutrition when he's 'working' during the breeding season
Monitoring body condition score on beef animals is important for making sure the animal's feed is sufficient for their stage of production
An ionophore is a type of antibiotic that is one of the reasons for concern regarding antimicrobial resistance in humans and will likely be banned soon.
(do not contribute to development of antibiotic resistance)
Select all of the following that are NOT true about the breeding season
The use of AI is the most common way to get beef cows pregnant and it has the highest pregnancy rates
A tight breeding season (and thus, tight calving season) is more economical than a year-round breeding program
If a cow does not get pregnant within the defined breeding season, this is an issue because she will calve months after everyone else, and thus, both she and her calf are now not in the same management group as the rest of the herd
A cow that does not get pregnant within the defined breeding season should be culled
Select all of the following that are NOT true about grass-fed, grass-finished beef
Is a faster way to finish a beef animal than grain-finished
They must be finished on actual pasture
All organic beef must be grass-finished
These animals are far less likely to suffer from acidosis and acidosis-induced lameness
The goal weight for slaughter is about 1300 lbs
Which of the following statements is NOT true about acidosis?
When feed particle sizes are large
Is detrimental to the ruminant's health
Can cause lameness
Caused by high starch diets
Weaning is the most stressful time in a beef calf's life. Either of the 2-step weaning methods will result in lower stress and improved gains of the calves.
The burdizzo clamp works by crushing the spermatic cord and blood vessels to the testes which, if done correctly, will cause the teste to die due to lack of blood flow and ruin the route for sperm to exit the scrotum. This method is preferred because it is fast and exceptionally pain-free in comparison to other methods.
(Ring and surgical are preferable; clamps are not always accurate and can be quite painful)
At approximately what age are most beef calves weaned?
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