Porcine Flashcards
Porcine industry
Industry
Farrow to finish
Traditional, most common
Feed conversion 3:1
3 lbs feed = 1 lbs gain
Gilts/sows bred, farrow, weaned, fed to market weight, transported, slaughter
How can pigs be used
Research
Backyard
Pets
Service animals
Industry
Pigs are social hierarchal animals
Small groups
Housed by age, weight, production stage, gender, temperament
Introducing new animals should be limited
Groups follow all-in-all-out practices
Agression in pigs
Aggression common
Limited feed structures
Increased bulk of feed, straw forage
Gestation stalls first 4 weeks
Reduce embryo loss from fighting
How often will pigs lay down
Happy pigs will lay/rest for 75-80% of the day
When do pigs get uncomfortable
Stress/discomfort
Restlessness
Tail biting
Indiscriminate elimination
Reduced weight gain
Overcrowding
Uncomfortable temp
Ammonia/Noxious gasses
Competition for resources
Environment to keep pigs in
Loss tolerant of temp fluctuations than other livestock species
Do not have coat or sweat glands
15-30*C for individual animals
Colder for mature sows, warmer for neonates
Influenced by bedding, group size, feed availability, body condition, humidity, drafts, etc.
Pilling, panting, hair growth, flushed, lying away from pen mates, etc.
Can tolerate cold temp better then hot temp
Nutrition for pigs
Designated by a nutritionist
Bulky feed to aid satiety, reduce aggression/boredom
straw/hay
Individual feeding best to avoid overeating, competition
Especially sows
Water is the most important nutrient!
Free choice, low mineral content
Check everyday that functioning
Lactating sows - 15L/day
Transportation of pigs
Weaned
28 hours without food, water or rest
Usually fasted 4 hours before transport, so usually 24 hours of transport
8 hours offloaded
Bedding, ventilation, avoid humid/hot weather, avoid prolonged stops
Fit for transport
How are pigs selected when it comes to reproduction
Highly fertile, rapidly growing
Selected for leanness, heavy muscled, soundness, frame size, reproduction
Boars begin to service at what age and what are there secondary sex characteristics
Begin to service at approximately 8-10 months
Selected for high fertility, large testicles, sound limbs
Secondary characteristics
Well muscled, tusks neck crest
Corkscrew shaped penis, sigmoid flexure
Sows become mature at
Gilts mature at 6-8 months of age
Influenced by body condition, exposure to boar
Non-seaonal
Estrous cycle lasts how long in sows
Estrous cycle approx. 21 days
Estrus cycle lasts how long in pigs
1-3 days
Signs of estrus in pigs
Swollen, red vulva, discharge
Vocalization (“barking”)
Mounting other sows
Restless
Perked ears
“Locked up” with pressure on back (standing heat)