Pigs and Poultry

Pig Digestive System

Monogastic

Pigs Reproductive System

Polyestrus breeders

Lactational anestrus: Do not have an estrous cycle when lactacting

Gestation: 115 days (3 months, 3 weeks, 3 days)

World Pig population

2 billion

China, European Union, U.S

United States Pig Population

68 million

Iowa, North Carolina, Minnesota

Pig breeds

(White + Dark) (Maternal Breeds + Terminal Breeds)

White pig breeds

White line breeds and corsses

Typically maternal Breeds

Dark pig breeds

Dark colored breeds

Traditionally meat breeds

Color in pigs

Does not matter since genes have been manipulated

Maternal Breeds (Pigs)

Yorkshire, Landrace, Chester White, Large White

Terminal Breeds Pig description

Taste good (meat)

Duroc - fast growth, good feed efficiency

Hampshire

Berkshire

Spot -High growth rate

Poland China - Large loin area

Pietrain - very lean, suceptible to PSS

PSS

Porcine stress syndrome

Genetically transmitted

Can lead to PSE

PSE

Pale, Soft, exudative

caused by variety of factors

ruins meat quality

Chicken digestive system

Monogastric

Chicken reproduction system

Oviparous - egg laying

Incubation - 21 days

Why is the chicken industry diffrent

Vertically integrated, Owened from chicks to death

Breed blind

Define Breed Bling

Purebred birds not used in commercial production

Broilers (meat chickens)

Ross and Cobb (Developed specically for industry)

Buff Orphington

Rhode Island Red

Dominqiue

Layers (Egg chickens)

Single Comb white leghorn

Buff Orphington

Aeaucana

World Chicken population

24 billion

China, US, Brazil

US chicken population

Layers - 2nd in world

Broilers - 1st in world

SC chicken population

11th in US

Turkey digestive system

Monogastrics

Turkey reproduction system

Oviparous

Incubation - 28 days