Lab Midterm
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Average gestation length of a ewe
147 day
true statement regarding “breeds”
the organisms share the same traits
At the swine unit, which rooms use the “all-in-all-out” strategy
All
When lower jaw is stronger than the upper jaw, this is coined
Monkey mouth
Gelbvieh and Limousin are similar breeds, what trait makes them different
Carcass Characteristics
which of following is false about Simmentals
They have good calving ease
USDA grader feeder cattle based on size and muscle thickness. There are ___ frame sizes and ___ muscle scores.
3,4
Which kind of teeth is not present in a ruminant mouth
upper incisors
Why would a producer prefer to select polled Herefords over horned Herefords
Reduce dehorning costs Reduce injury to handlers Prevent injury to herd
Why are most market hogs crossbred
Hybrid vigor
Which of the following might have exceptionally aggressive behaviors
an Intact Male and New mother
Why are pigs vaccinated even if the herd itself is disease-free
Build immunity in case they leave the farm
In Brian’s eyes, what’s the most important point of evalution for a newborn replacement gilt?
Underline
The weaning weight of calves is adjusted to how many days
205
90 day WW formula
((weaning weight-birth weight)/weaning age days)x90 all +birth weight
what does feed efficiency measure
lbs of feed required per lbs of gain
PSS
porcine stress syndrome; occurs due to selection for extreme muscling
PSE
pale, soft, and exudative carcass
Maternal traits are mostly associated with ___ beef breeds and paternal/terminal traits are associated with ___ beef breeds
British Continental
Range for BCS in cattle is
1-9
Continental breeds take longer to mature (T/F)
T
British breeds have larger frame sizes than continental breeds (T/F)
F
A bull CAN pass strong maternal traits to their progeny (T/F)
T
Continental breeds tend to have less muscle than British breeds (T/F)
F