Flashcards in Estrous Cycle of Swine Deck (41)
What type of breeders are pigs?
What is the estrus cycle length of a pig?
When do pigs reach puberty?
When is a pig first bred?
How long does proestrus last in a pig?
How long is estrus in a pig?
When does ovulation occur in a pig?
24-48h after onset of estrus
When is optimal breeding time for a pig?
12-30h after onset of estrus
When should mating occur in order to maximize conception rates?
12h prior to ovulation
Why do environment and comfort influence sow breeding?
Heat stress causes seasonal anestrus
What is the duration of diestrus in a pig?
When will the CL become responsive to PGF during diestrus?
After 12d of diestrus (so there's no point to short cycle a sow)
How soon after weaning estrus occur?
What reproductive clinical signs are assoc. w/porcine parvoviurs?
Porcine parvo infection @ <30d gestation results in what?
Porcine parvo infection @ 30-70d gestation results in what?
Porcine parvo infection @ >70d gestation results in what?
Dead or weak piglets
How do you dx porcine parvovirus?
IFA of mummy or by rising titer in sow
How can you control porcine parvovirus?
Comingle gilts and sows, pre-breeding vax
What is the most relevant Lepto serovar for swine reproduction?
L. interrogans pomona
What are clinical signs of Lepto?
Pyrexia, still births, last trimester abortions
How do you treat Lepto?
Tetracycline in feed, vaccinate
What disease causes premature farrowing, small/weak piglets, stillborns and mummies, and delayed/abnormal estrus?
How do you diagnose PRRS?
How do you prevent PRRS?
Vaccination (not super effective)
What type of virus is PRRS?
What disease causes abortion at any time of gestation and infertiligy?
What lesions will you see in pigs with Brucella suis?
Arthritis and orchitis
Which reproductive disease of pigs is zoonotic?