Therio, Q2, Pig

Card Set Information

Author:
HLW
ID:
183812
Filename:
Therio, Q2, Pig
Updated:
2012-11-15 09:16:53
Tags:
Therio Q2 Pig
Folders:

Description:
Therio, Q2, Pig
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user HLW on FreezingBlue Flashcards. What would you like to do?


  1. When is puberty in gilts (female pigs no babies yet)?
    7 months
  2. When is the best estrus to breed gilts on?
    • 3rd estrus
    • peak = 4-7th
  3. How long does estrus last in the sow?
    ~53 hours
  4. How long is the inter-estrus interval?
    ~21days
  5. When is PGF2alpha refractory in the sow?
    until day 12
  6. What does boar exposure do for litter size and estrus?
    • increases litter size
    • speeds up estrus
  7. When is ovulation after heat seen?
    40 hours after estrus/heat
  8. What does suckling and lactation do for cyclic activity?
    • supresses it
    • weaning earlier results in ovarian abnormalities
  9. Do pigs have follicular waves?
    no follicular waves
  10. What is the pregnancy marker in the sow?
    estrogen- its the signal for maternal recognition too
  11. How many conceptuses are needed for establishment of pregnancy?
    4 conceptuses needed
  12. Pregnancy is maintained by the CL or the placenta?
    CL maintains pregnancy
  13. When is the best time to inseminate a sow?
    • 8 hours before ovulation
    • (therefore 12-36 hrs after estrus starts)
  14. What percent of sows farrow at night?
    60-70%
  15. How do you often know the sow is done with parturition?
    she stands and urinates
  16. What is the normal stillbirth rate in farrowings? when is the rate increased?
    • 3-6% stillbirths= normal
    • increased rate in litter size <4 and >14
  17. What are some signs that farrowing is near?
    • milk release ~24 hrs before
    • nesting, relaxing vulva
  18. What is the procedure for using prostaglandins to induce farrowing?
    • inject 2-3 days before you want farrowing
    • they farrow 24-36 hrs after injection
    • safe after day 110
  19. What are the two most common reasons for pig dystocia?
    • inertia
    • oversize/malpresentation
  20. If abortion occurs before 35 days what happens?
    resorption becuse this is before skeletalization
  21. What happens if abortion occurs after 35 days?
    mummification = >35d gestation
  22. The viral causes of abortion often result in what?
    • mummification
    • (remember this is sterile)
  23. There are 3 groups of infectious infertility- what is Group 1?
    • opportunists
    • (staph, strep, Erysipelothrix, Eperythrozoon, Arcanobacter, salmonella, pasteurella, fungi, escheria)
  24. What is Group 2 of infectious infertility?
    • contagious causes
    • (teschoviruses, porcine parvovirus)
  25. What is group 3 of infectious infertility?
    • significant diseases- some are zoonotic
    • control by slaughter or vaccination
    • (PRRS, African Swine fever, Hog Cholera, Brucellosis, lepto, venereal, Aujesky's)
  26. PRRS is otherwise known as what disease?
    "Blue eared pig disease"
  27. Is Autumn Abortion Syndrome infectious?
    No- this is a non infectious cause of infertility
  28. Why does Autumn Abortion Syndrome occur?when does it happen?
    • unknown cause- could be many things
    • from Sept-Dec from 30-110days gestation
  29. What are the clinical signs and pathologic lesions with Autumn abortion syndrome?
    • no clinical signs
    • no pathological lesions
  30. Is there such a thing as too much nutrition?
    YES- a high plane of nutrition can decrease alive ambryps and decrease their survival
  31. What is the average weaning to estrus interval?
    3-14 days (aim for 7 days)
  32. What effects the weaning to estrus interval?
    boar, lactation length, suckling, removing the biggest piglets, nutrition, genetics, light ect
  33. What is split weaning?
    • removing the heaviest piglets from nursing on the sow therefore weaning them first
    • helps the milk stress on the mom
  34. What are some similar signs to Hypogalactia?
    • Dysgalactia
    • MMA= metritis, mastitis, agalactia
  35. What are some causes of hypogalactia?
    • coliform mastitis
    • endotoxemia
    • uterine infections
    • stress
  36. What are some risk factors for sows to get hypogalactia?
    • fat sows
    • housing
    • nutrition
    • urinary infections
  37. What are some clinical signs of hypogalactia?
    • not eating
    • vulvular dischage
    • pyrexia >103 F
    • delayed parturition
  38. How can I treat hypogalactia?
    • Grem neg antibiotics
    • induce parturition
    • oxytocin
  39. What do the piglets look like from a hypogalactic sow?
    • weight loss later
    • increased mortality
    • diarrhea and restlessness in first 3 days

What would you like to do?

Home > Flashcards > Print Preview