exam 3: old quizzes Flashcards
_________pork has a sticky surface.
DFD (dark, firm and dry)
Culling a sow because she has reached her 7th parity is an example of _________________
voluntary culling
Culling a sow because of structural issues with her feet and legs is an example of ________
Involuntary culling
Culling a sow because she consistently gives birth to litters of 7 pigs is an example of ________________
Voluntary culling
Water holding capacity increases as the pH value_____________
Increases
Feeding wheat to finishing pigs results in pork that is____________ in terms of firmness.
normal
Feeding soybean oil to finishing pigs results in pork that is _______ in terms of firmness.
soft
Which farrowing/lactating sow is the least at risk of dying before weaning? All unstated factors are identical.
bcs of a 1
BCS of a 4
no differece
BCS 4
Which gestating sow is the least at risk of dying before farrowing? All unstated factors are identical.
no difference
fed course ground diet
fed finely ground diet
fed course ground diet
Which farrowing sow is the most at risk of dying before weaning? All unstated factors are identical.
Farrowed in July
No difference in mortality risk
Farrowed in January
Farrowed in July
Pale colored pork has a _________ pH value compared to normal colored pork.
lower
T/F Pork that is dark in color has a reduced shelf life compared to pork that is normal in color.
true
What genetic condition(s) is usually responsible for PSE (pale, soft and exudative) meat?
porcine stress syndrome
On most commercial sow farms, sows must reach their ___________parity in order to start making money for the farm.
fourth
Artificial insemination is a common practice on commercial sow farms. How does artificial insemination contribute to sow mortality rates?
AI does not show structural issues like natural service can. Typically in natural service when the boar mounts the female you can tell if she is not structurally sound because she may struggle to handle to boars weight or other reasons, an AI rod cannot show you that.
During what two times in the sow production cycle are sows usually culled from the herd?
- At weaning (due to poor performance, structure issues, parity etc.)
- When preg checked if not pregnant
What are the five wholesale cuts of a pork carcass:
- Boston Butt/ shoulder
- Picnic shoulder
- Loin
- ham
- side/belly
What are the two methods used in U.S. packing plants to render pigs unconscious prior to being bled out?
Carbon dioxide
Electrical stunning
What are two reasons why swine diets should not contain more than 5% fats and oils?
It can cause caking of the feed/ feed mixer
High fat= decreased intake of feed, so it will mess with the pigs ADG/ growth performance
As pigs become heavier the amount of water they require increases. What are three other factors that impact water usage by pigs?
Temperature of barn
Health status of pig
Water flow
In gestation, lactation and finishing diets ____________ is the amino acid of the greatest concern due to its limited availability in the feedstuff ________
lysine
corn
Which pig would consume the most feed per day? All unstated factors are identical.
275 pound barrow
No difference in feed intake
220 pound barrow
275 pound barrow
Which pig would consume the most feed per day? All unstated factors are identical.
No difference in feed intake
Housed in a 45 degree Fahrenheit barn
Housed in a 82 degree Fahrenheit barn
Housed in a 45 degree Fahrenheit barn
Which pig would consume the least feed per day? All unstated factors are identical.
No difference in feed intake
0.55 inches of backfat
0.95 inches of backfat
0.55 inches of backfat
Which pig would require the most feed per pound of gain? All unstated factors are identical.
No difference in feed efficiency
180 pound gilt
180 pound barrow
180 pound barrow
Which pig would require the most lysine in their diet? All unstated factors are identical.
0.55 inches of backfat
No difference in lysine requirement
0.95 inches of backfat
0.55 inches of backfat
Which pig has the highest average daily gain? All unstated factors are identical.
No difference in average daily gain
105 pound barrow
187 pound barrow
20 pound barrow
20 pound barrow
Which pig would consume the least feed per day? All unstated factors are identical.
No difference in feed intake
190 pound barrow
190 pound gilt
190 pound gilt
Which pig would require the least lysine in their diet? All unstated factors are identical.
No difference in lysine requirement
Housed in a 48 degree Fahrenheit barn
Housed in a 81 degree Fahrenheit barn
Housed in a 48 degree Fahrenheit barn
T/F Pigs synthesize B vitamins in their small intestine.
false; large instestine
Pigs that consume water with high levels of nitrates show signs of _______
cyanosis
Feeding_____________with solubles can lead to soft fat in swine carcasses
Dried distiller grains with solubles
T/F Pigs produce volatile fatty acids in their small intestine
false; large intestine
T/F Milo has more energy than corn oil.
false
___________ breaks down fat
lipase
High fat diets ___________ feed intake.
decrease
as a pigs weight increases, their lysine requirement ____________
increases
the amount of feed a pig eats increases, meaning the % lysine needed __________
decreases
Which pig is more likely to suffer a mineral and vitamin deficiency? All unstated factors are equal.
Raised outdoors
Raised indoors
No difference in risk
raised indoors
what toxin is found in Cottonseeds
gossypool
T/F A gilt is more likely to suffer from a mineral deficiency than a heifer. All unstated factors are equal.
true
A diet deficient in _____________will result in pigs with Blindness .
vitamin A
Which feedstuff has the highest crude protein?
No difference in crude protein levels
Corn
Soybean meal
Sunflower meal
Rye
Blood meal
blood meal
Due to the high level of ______________in sunflower meal, its use is limited in swine diets.
Non-digestible fiber (NDF)
A diet deficient in pantothenic acid will result in pigs with _________________
goose-stepping
Rickets is the result of feeding pigs a diet deficient in
calcium/ phosphorus
When using spray-dried plasma protein in post-weaning diets, the level of the amino acid_______________ in the diet must be carefully checked.
methionine
Mulberry heart disease is the result of feeding pigs a diet deficient in which vitamin
vitamin E
Which feed contains omega-3-fatty acids?
fish meal
T/F Animal protein sources are more expensive than plant protein sources.
true
T/F Animal protein sources are most frequently used in early post-weaning swine diets.
true
Prior to feeding soybean products to pigs the beans should be_________ in inactivate ____________ inhibitors
heated
trypsin
In order to save money Tammy Tightwad reduces the amount of lysine in her finishing pig diet. What are two consequences the finishing pigs will experience due to being fed an amino acid deficient diet?
Reduced lysine will lead to poor growth developement and less lean of a pig because lysine is what determines how good of a protein source something is.
What are the four macrominerals routinely added to swine diets?
calcium
phosphorus
sodium
chloride
Sow diets routinely have extra water-soluble vitamins added to them to improve performance. What are two water-soluble vitamins typically added to sow diets?
Folic acid
Biotin
when facing the pig, what ear represents the litter number
right
when facing the pig, what ear represents the individual number
left
can wheat and milo replace 100% corn
YES
