Animal Science Exam #3 Questions with
100% Correct Answers | Already Graded
A+
Which city was termed "porkopolis?" - ✔✔Minneapolis
What city was the center of the meat packing industry from the 1860's into the
1900's - ✔✔Chicago
What are the three types of feeding we went over? - ✔✔segregated early
weaning, split sex feeding, phase feeding
Segregated early weaning - ✔✔practice of weaning pigs at 10-14 days of age
and isolating multiple litters from other age groups to reduce disease
contraction
Split sex feeding - ✔✔placing of newly weaned barrows and gilts in separate
groups until market age
Phase feeding - ✔✔adjusting/changing rations to best fit the nutrient
requirement of pigs as they grow and develop
Advantage of pasture raising pigs - ✔✔low investment
Disadvantage of pasture raising pigs - ✔✔lots of labor required
1|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, Types of low investment operations - ✔✔pasture systems, feeding out feeder
pigs
Types of high investment operations - ✔✔farrow-to finish
Which operation takes more labor on a per pig basis? - ✔✔farrow-to-finish
operations
How much does feed contribute to the cost of a pig - ✔✔50% of cost
Examples of crossbreeding programs - ✔✔terminal and rota-terminal programs
What are terminal crossbreeding programs - ✔✔take advantage of breed
differences. Sow is crossed for maternal traits and boar is crossed for carcass
merit and fast efficient gain.
What are rota-terminal crossbreeding programs - ✔✔make use of breed
strengths and minimize weaknesses. Allows for 100% heterosis in offspring and
80% maternal heterosis
Low heritable traits (<20%) - ✔✔Litter survival, number farrowed, number
weaned
Higher heritable traits (> or at 20%) - ✔✔birth weight, weaning weight, feed
efficiency, growth rate, age at puberty, backfat thickness
2|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
100% Correct Answers | Already Graded
A+
Which city was termed "porkopolis?" - ✔✔Minneapolis
What city was the center of the meat packing industry from the 1860's into the
1900's - ✔✔Chicago
What are the three types of feeding we went over? - ✔✔segregated early
weaning, split sex feeding, phase feeding
Segregated early weaning - ✔✔practice of weaning pigs at 10-14 days of age
and isolating multiple litters from other age groups to reduce disease
contraction
Split sex feeding - ✔✔placing of newly weaned barrows and gilts in separate
groups until market age
Phase feeding - ✔✔adjusting/changing rations to best fit the nutrient
requirement of pigs as they grow and develop
Advantage of pasture raising pigs - ✔✔low investment
Disadvantage of pasture raising pigs - ✔✔lots of labor required
1|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, Types of low investment operations - ✔✔pasture systems, feeding out feeder
pigs
Types of high investment operations - ✔✔farrow-to finish
Which operation takes more labor on a per pig basis? - ✔✔farrow-to-finish
operations
How much does feed contribute to the cost of a pig - ✔✔50% of cost
Examples of crossbreeding programs - ✔✔terminal and rota-terminal programs
What are terminal crossbreeding programs - ✔✔take advantage of breed
differences. Sow is crossed for maternal traits and boar is crossed for carcass
merit and fast efficient gain.
What are rota-terminal crossbreeding programs - ✔✔make use of breed
strengths and minimize weaknesses. Allows for 100% heterosis in offspring and
80% maternal heterosis
Low heritable traits (<20%) - ✔✔Litter survival, number farrowed, number
weaned
Higher heritable traits (> or at 20%) - ✔✔birth weight, weaning weight, feed
efficiency, growth rate, age at puberty, backfat thickness
2|Page
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
