Bovines

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Author:
XQWCat
ID:
143511
Filename:
Bovines
Updated:
2012-04-13 16:43:25
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vet tech
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Bovines
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  1. Cow latin
    • Bos taurus - temperate climates (here)
    • Bos indicus- hot climates
  2. Dairy cattle characteristics
    prominent pelvic bones, long heart girth (longer than beef cattle), long, thin legs. High body fat, wide udder, 30 pounds of milk per day, 4 teats. must test each teat separately for mastitis. Milked twice a day
  3. dairy breeds
    holstein-friesian, guernsey, jersey, ayrshire, brown swiss.
  4. Holstein-Friesian
    dairy cow, black and white, high quality milk, bulls used for veal or beef
  5. Guernsey
    dairy cow, brown and white, lots of milk, low milk-fat
  6. Jersey
    dairy cow, mostly 1 color, small head, lots of milk, low fat content
  7. Ayrshire
    dairy cow
  8. Brown Swiss
    dairy cow
  9. Stanchion barn
    Most restrictive housing. Cow has individual stall with room to turn around and lie down, rubber mat or sawdust for bedding. Spend most of time in stall--good for putting on fat
  10. free-stall system
    feeding area and resting area. Most farms use this. Can wander around--not locked in
  11. pen "loose" housing
    least restrictive housing. Open to the outside for ventilation, all animals together in a big pen. Eat and wander as they want to Lots of bugs.
  12. bulk tank
    large tank automatic milkers pour into. Has an allowable amount of bacteria.
  13. Dairy calves are weaned at
    3/4 months. Go on formula after 1-2 days
  14. heifer
    a cow old enough to give birth that has not yet had a calf
  15. drying off period
    2 months at end of pregnancy when cows are allowed to dry up and stop being milked to prepare for birthing. Cows give birth every year, starting at 2.
  16. female cow
    cow
  17. male cow
    bull
  18. neutered male cow
    steer
  19. baby cow
    calf
  20. cows parturition
    calving
  21. mastitis
    inflammation of mammary glands (usually bacteria)
  22. beef cattle characteristics
    lots of muscle, stocky, small udder, short, thick limbs. Give some milk.
  23. Breeds of beef cattle
    European, Indian, US-developed and emerging. US: Angus, Hereford, polled Hereford. Brahman
  24. Angus
    beef cow
  25. Hereford
    beef cow. Long-standing breed. American south and southwest
  26. polled hereford
    beef cattle. No horns
  27. Brahman
    beef cattle--Bos indicus. Hump, no horns, long, floppy ears
  28. Beef cattle housing
    rarely use confinement housing--tend to be open-pasture.
  29. "turning out"
    letting into pasture
  30. feed lot
    close to slaughter, beef cattle are brought into large, fenced-in lot where food (hay and pelletted feed) is brought to them. Easy to develop disease (fecal parasites). Separated by sie and age.
  31. pasture-rearing
    cow grazes over territory that has been planted to increase nutrition and increase muscle mass
  32. open range
    cows graze over an unrestricted area that has not been planted. need lots of space, can encroach on endangered species. Need big barrels of available water (50 gallons per day) that is not allowed to freeze over, or they'll get sick. Healthier than feed lots, but hard to watch individual animals
  33. 4 chambers of a cow's stomach
    reticulum, rumen, omasum, abomasum. Regurgitate from rumen. Abomasum adds enzymes and sends to intestines.
  34. Cow mastication
    pick up food with tongues and rarely chew. Do not have upper incisors, instead have dental pad.
  35. IDing cows
    ear tags to indivate vaccinations, sometimes tattooing. Working on nation-wide ID system
  36. rumenostomy
    a hole cut in the rumen of a cow to allow people to watch digestion and to act as rumen-donors to re-seed bacteria in rumen of other cows.
  37. cows eat
    • roughage (any vegitation)
    • hay (dried grass)
    • silage (grains-fermeneted corn or wheat in a silo)
    • occasional proteins in beef cattle
    • dairy cattle feed is tightly controlled--lots of energy while lactating. Graze 6-9 months
  38. beef calves weaned at
    6 months. Then graze open pasture until 15 months, then move to feed lot
  39. ways to control cows
    ring through nasal septum or squeeze chute, nose tong or rope lead
  40. dehorning
    before 8 weeks, done universally for safety, not during fly season. Electric is best. "Debudding" on a calf
  41. neutering
    before 3 months. Surgical, emaculatome (crushes spermatic cord)
  42. medicating
    balling gun, drencher (gas can), syringe, tube
  43. supernumerary teats
    usually removed early. Risk of mastitis high, even after removal
  44. Estrus
    cattle are seasonally polyestrus with 21-day cycles. Lasts 18 hours and ovulation comes 12 hours afterwards. Timing is crucial. Dairy bred by AI to prevent STDs. Beef bred by natural cover. Breeding occurs again 2 months after parturition
  45. Puberty
    can be before 1 year, but not bred until 15 months
  46. gestation
    9 months
  47. calf care
    precocial. Need shelter. Need 2 quarts of colostrum within 6 hours of life. After 1-2 days, fed by pail or bucket, usually formula.
  48. milk letdown
    calf nuzzling or washing the udder stimulate pituitary to send oxytocin to cause teats to express milk. Produced in alveoli of udder
  49. stripping
    taking the first couple squirts of milk to examine for blood, debris or flakes (mastitis).
  50. California Mastitis Test
    a handle/paddle with four little cups for the four udders. Strip that changes color in presence of bacteria.
  51. Withdrawal Time/Pre-Slaughter interval
    time after giving an animal medicine before animal or products can be used for food. Withdrawal refers to drugs, pre-slaughter can refer to calving or dewormer
  52. Tuberculosis
    M. bovis = bovine TB.
  53. Brucellosis
    B. abortus. Can be responsible for abortion storms (whole herd miscarries). Brucella is zoonotic (blisters and flu-like symptoms)
  54. Vaccines
    lots of bacterial diseases, bovine viral diarrhea and brucella for females. Males are not vaccinate for brucella--can give to females during mating.
  55. Cattle diseases
    displaced abomasum (ventralmost part, causes bloat), hardware disease (traumatic reticulopericarditis), skin diseases. White muscle disease (selenium deficiency), milk fever (lack of calcium due to poor nutrition before calving)

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