Pig Health 1 and 2 Flashcards
What is the gestation length for pigs?
3 weeks, 3 months, 3 days
What is the reproductive cycle length of pigs?
21 days
What is the target conception rate (%)?
90%
What is the average service interval?
5.5
What is the farrowing index?
Litters per sow per year
What are the two most common methods of heat detection?
Back pressure and an enlarged vulva
What is seasonal infertility?
Common for decreased fertility as daylight decreases
When should you vaccinate sows in pregnancy?
3 to 4 weeks pre-farrowing
What is the sow replacement rate?
Aim to replace 45% of the herd per year
When should you aim to cull sows?
After 6th parity
How could you synchronise gilts for ovulation at the same time?
Feed progesterone for 18 days, mix with the boar as soon as progesterone stops. gilts come on heat 4-5 days after withdrawal of progesterone
What pathogen causes mange in pigs?
Sarcoptes scabei var suis
Which type of lice affect pigs?
Haematopinus suis
List the four main causes of sudden deaths in sows
Gastric torsion
Clostridial infections
Pyelonephritis
Stomach ulcers
