Dairy3- Precision Dairy

  1. What is the traditional way of raising calves today? Why? (3)
    hutches from birth to weaning; from weaning on, group pens; reduced disease transmission (diarrhea and pneumonia), disease recognition is easier, feed intake monitoring
  2. What are ways to minimize risk of disease in group housing for calves? (4)
    colostrum*****, vaccinate, ventilation, clean environment
  3. What are advantages of automatic calf feeders? (3)
    require less labor, allow for greater milk consumption/more meals throughout day, collect valuable data
  4. What type of data does the automatic calf feeder collect? (4)
    number and timing of visits, amount of milk consumed by each calf, number of unrewarded visits (when no milk is fed), total amount consumed
  5. What are potential issues with automatic feeders? (4)
    grouping calves of different sizes, pen sizing (no more than 20 calves per pen), "ruminal" drinkers (he doesn't think this is a huge problem), restricted feeding (if calves can drink as much as they want, they do better)
  6. Why is grouping calves of different sizes for an automatic feeder a problem?
    calves will figure out that ilk only comes so many times; bigger calves will let the small calf get in and trigger milk let down, then pus it out and drink its milk (prevent this by putting a gate on the back)
  7. 3 functions of rumination.
    reduce particle size, SARA [sub-acute rumen acidosis] prevention (buffer rumen with bicarb from saliva), rumen microflora
  8. What are the major uses of activity monitors? (2)
    heat detection, lying time (lameness, milk flow)
  9. When cows have a spike in activity,they typically have a(n) _________ in ruminations.
  10. 70% of lactating Holstein cows were detected with activity monitors; what happened to the other 30%?
    anovular cows
  11. What are the advantages of robotic milking systems? (4)
    schedule flexibility, labor efficiency, information at the cow level, expansion opportunity
  12. What are the 2 types of cow traffic through robotic milking systems?
    • Free flow: cows roam to the robot as they want (majority of systems)
    • Forced/guided flow: cows must go through the robot to get feed; milk first and feed first systems
  13. What are the advantages/disadvantages of each the free (3) and guided (5) robotic milking systems?
    • Free: lower milking frequencies, higher number of fetched cows, more refusals
    • Guided: improves # of voluntary milking, changes eating and lying behavior, less refusals, less human interaction, more expensive
  14. How do cows usually take to the robotic milking machines? (3)
    • usually takes <4 trips to the robot to learn
    • may need to cull cows with certain udder conformation
    • may need to manually attached heifers as they learn
  15. What are "fetched cows"?
    cows that need to be pushed into the robot, may need to be culled
  16. What is "failure"?
    robot fails to attach to an udder, may need to be culled
  17. What is "rejection"?
    not reached her allotted time interval in the robotic milker
  18. What are 2 things you should always check on calves?
    cleft palate and umbilicus
  19. Is it profitable to put in robots?
    mostly depends on how much value you place on quality of life
  20. What is the veterinarians role in the use of milking robots?
    advise owner on fetch cows (cull or teach to use robot), failed milking, activity, ruminations, watch the robots!! (teat dip coverage, functioning properly, etc)
  21. Describe the Lely A4 robotic milking system.
    single box system, teat brush for prep, pura steam [majority in US use this sytem]
  22. Describe the boumatic robotic milking system.
    • single box system, separate pre-milking cup, attach from behind
    • MR-D1- double box, single unit
  23. Describe the DeLaval robotic milking system.
    single box, separate pre-milking cup, milking rotary
  24. Describe the GEA- DairyProQ robotic milking system.
    rotary, clean, strip, milk, post-dip all in one liner
  25. Describe the Insentec- Galaxy robotic milking system.
    • multibox- two stalls, one arm
    • separate pre-milking cup
    • technical service school
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Dairy3- Precision Dairy
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