animal science pigs

Gilt

A female pig that has never given birth

Sow

A female pig that has farrowed (given birth) at least once

Boar

An intact male hog

Barrow

A male pig castrated at a young age

Piglet

The offspring of a boar and a sow

Farrowing

The specific act of giving birth in pigs

Nursery/Feeder Pig

Newly weaned piglets

Finishing

The production phase between the nursery and the market

Breeding

Gilts are typically bred at 6–8 months of age (230–240 lbs) during their 2nd or 3rd estrus.

Gestation

Lasts 114 days (3 months, 3 weeks, 3 days)

Sows are moved into crates ____ days before birth

5-7

Piglets are weaned at ____ (10–40 lbs)

2–6 weeks

Hogs are marketed at ____ when they are _____

230–260 lbs, 5–6 months old

White, erect ears, litter size, 21 day litter wt, structural soundess

Yorkshire

White, lonng drooped ears, litter size, 21 day litter wt, structural soundness

Landrace

White, erect ears, prominennt sow breed of europe, ancestor of the yorkshire breed

Large white

Short drooped ears, litter size, conception rate

Chester white

red, drooped ears, fastest growing, strongest in performance traits, strong in structural soundness

Duroc

Black with white belt over shoulders, erect ears, lowest backfat, large LEA, best carcass traits, strong structural sounndess

Hampshire

Black w/white points, drooped ears

Large LEA

black with white poinnts, erect ears

Berkshire

black and white, drooped ears

Spotted

Herability

Proportion of total phenotypic variability in a group that is due to genetic variability

Heterosis

Superiority of the crossbreed animal as compared to the average of the parental breeds