Bovine Mammary, Herd Health, Vaccinations, Antibiotics Flashcards
What does ELDU stand for?
Extra-label drug use
T/F: The standard plate count indicates bacteria that survive pasteurization
False
The standard plate count indicates the number of bacterial colonies per mL of raw milk
Under what circumstance may antibiotics be added to feed in a manner or dose other than that described on the manufacturer’s label?
Feed additive drugs are not allowed to be used in an off-label manner
Too high a vacuum level during the milking process of dairy cows may predispose to mastitis by causing:
- Chapping of the teats
- Eversion of the teat sphincter
- Impacts
- Circulatory congestion of the teat
- Damaging the epithelial lining of the streak canal
Eversion of the teat sphincter
Sulfamethazine is banned from use in dairy animals except:
under 20 months
What vaccine has been developed by the University of Alaska for use in the reindeer population?
- Paratuberculosis
- Scrapie
- Western encephalitis
- Tuberculosis
- Brucellosis
Brucellosis
More cheese can be made from milk with a lower somatic cell count. What is the upper limit for somatic cell count of milk in the United States?
- 100,000
- 200,000
- 400,000
- 500,000
- 750,000
750,000
The apparatus responsible for opening and closing of the rubber teat cup lining of the milking machine is the:
- Regulator
- Controller
- Pulsator
- Claw
- Air flow meter
Pulsator
Which type of mastitis is usually considered to be environmental?
- Mycoplasma spp.
- Corynebacterium pyogenes
- E. coli
- Staphylococcus aureus
- Streptococcus agalactiae
E. coli
Which one of the following would be considered the most risky time for new udder infections in dairy cows?
- At the time of first estrus during lactation
- The first week after drying off
- At the time of peak milk production
- Mid lactation after the cow is pregnant
- In the middle of the dry period
The first week after drying off
T/F: Production medicine is the summation and charting of herd performances, which then allows management to make herd-based decisions
True
Which one of the following bedding materials for dairy cattle would be most acceptable with respect to prevention of mastitis?
- Sawdust
- Cornstalks
- Discarded corn silage
- Sand
- Clean wheat or oat straw
Sand
In the milking process how soon should the inflations be attached to the teats after the udder is first touched
- As soon as possible
- 15 -30 seconds
- 30 - 60 seconds
- 1-1.5 minutes
- Wait at least 2 minutes
1-1.5 minutes
Which of the following vaccines needs to be handled with great care because of a risk of possible zoonosis?
- Bovine virus diarrhea
- Bovine brucellosis
- Malignant edema
- Ovine foot rot
Bovine brucellosis
What pathogen is linked to udder suicide?
E. coli
By infecting cows mammary glands, these bacteria are driving milk-making cells to suicide, according to ongoing investigations into costly udder troubles