Animal Science 101 Cumulative

Vertical Integration Ranking

Poultry > Swine > Beef

Largest Global Pork Producer

China

Primary Broiler Region

Southeastern U.S.

Ruminant Advantage

Converts cellulose into human-edible protein

Broiler Feed Conversion

Approximately 1.8:1

Layer Production Goal

260-280 eggs/hen/year

Molting

Natural rest period resetting egg production

Light Effect on Laying

Increases egg production

Market Pig Weight

Approximately 280 lbs

Barrows vs Gilts

Barrows are fatter and grow faster; gilts are leaner

Farrowing Stall Purpose

Prevents piglet crushing and provides dual heat

Percent Calf Crop Goal

90%

Calving Interval

365 days

Feedlot ADG Goal

3.5-5.0 lbs/day

Bos Taurus Trait

Superior marbling, suited to cooler climates

Sheep Gestation Length

148 days

Black-Faced Breeds

Terminal breeds such as Suffolk, Hampshire

White-Faced Breeds

Wool breeds such as Rambouillet, Columbia

Peak Milk vs Peak DMI

Peak milk occurs before peak dry matter intake

Dry Period Length

Approximately 60 days

Holstein Characteristics

Highest milk volume

Horse Digestive Type

Hindgut fermenter

Laminitis Cause

Often grain overload or sudden dietary change

Colic

General term for digestive pain

Beef Dressing Percentage

Approximately 62%

Pork Dressing Percentage

Approximately 74%

Myoglobin Function

Pigment responsible for meat color

Beef Quality Grades

Prime, Choice, Select

Lamb Break Joint

Indicates lamb, not mutton

Beef Yield Grade 1 Meaning

Leanest carcass

Muscle Growth Mechanism

Increase in cell size

Fat Growth Mechanism

Increase in cell size and number

Tissue Growth Order

Nervous → Bone → Muscle → Fat

Phenotype Equation

P = G + E

Highest Heritability

Carcass traits

Lowest Heritability

Reproductive traits

EPD Definition

Expected Progeny Difference

Most Important Nutrient

Water

Fat Energy Density

2.25× energy of carbohydrates

Converting AF to DM

Multiply by DM percentage

Estrus Definition

Standing heat

Gestation Length

Cow - 283 days

Progesterone Function

Maintains pregnancy

Prostaglandin Function

Regresses corpus luteum

Vertical Integration Ranking Review

Poultry > Swine > Beef

Largest Global Pork Producer Review

China

Primary Broiler Region Review

Southeastern U.S.

Ruminant Advantage Review

Converts cellulose into human-edible protein

Broiler Feed Conversion Review

Approximately 1.8:1

Layer Production Goal Review

260-280 eggs/hen/year

Molting Review

Natural rest period resetting egg production

Light Effect on Laying Review

Increases egg production

Market Pig Weight Review

Approximately 280 lbs

Barrows vs Gilts Review

Barrows are fatter and grow faster; gilts are leaner

Farrowing Stall Purpose Review

Prevents piglet crushing and provides dual heat

Percent Calf Crop Goal Review

90%

Calving Interval Review

365 days

Feedlot ADG Goal Review

3.5-5.0 lbs/day

Bos Taurus Trait Review

Superior marbling, suited to cooler climates

Sheep Gestation Length Review

148 days

Black-Faced Breeds Review

Terminal breeds such as Suffolk, Hampshire

White-Faced Breeds Review

Wool breeds such as Rambouillet, Columbia

Peak Milk vs Peak DMI Review

Peak milk occurs before peak dry matter intake

Dry Period Length Review

Approximately 60 days

Holstein Characteristics Review

Highest milk volume

Horse Digestive Type Review

Hindgut fermenter

Laminitis Cause Review

Often grain overload or sudden dietary change

Colic Review

General term for digestive pain

Beef Dressing Percentage Review

Approximately 62%

Pork Dressing Percentage Review

Approximately 74%

Myoglobin Function Review

Pigment responsible for meat color

Beef Quality Grades Review

Prime, Choice, Select

Lamb Break Joint Review

Indicates lamb, not mutton

Beef Yield Grade 1 Meaning Review

Leanest carcass

Muscle Growth Mechanism Review

Increase in cell size

Fat Growth Mechanism Review

Increase in cell size and number

Tissue Growth Order Review

Nervous → Bone → Muscle → Fat

Phenotype Equation Review

P = G + E

Highest Heritability Review

Carcass traits

Lowest Heritability Review

Reproductive traits

EPD Definition Review

Expected Progeny Difference

Most Important Nutrient Review

Water

Fat Energy Density Review

2.25× energy of carbohydrates

Converting AF to DM Review

Multiply by DM percentage

Estrus Definition Review

Standing heat

Gestation Length Review

Cow - 283 days

Progesterone Function Review

Maintains pregnancy

Prostaglandin Function Review

Regresses corpus luteum

Vertical Integration Ranking Review

Poultry > Swine > Beef

Largest Global Pork Producer Review

China

Primary Broiler Region Review

Southeastern U.S.

Ruminant Advantage Review

Converts cellulose into human-edible protein

Broiler Feed Conversion Review

Approximately 1.8:1

Layer Production Goal Review

260-280 eggs/hen/year

Molting Review

Natural rest period resetting egg production

Light Effect on Laying Review

Increases egg production

Market Pig Weight Review

Approximately 280 lbs

Barrows vs Gilts Review

Barrows are fatter and grow faster; gilts are leaner

Farrowing Stall Purpose Review

Prevents piglet crushing and provides dual heat

Percent Calf Crop Goal Review

90%