35-day-old broiler chickens are in a poultry house which
measures 78∘ F and 65% relative humidity. Which outside air
conditions will most efficiently remove moisture and reduce the
relative humidity within the house? Correct Answers 65 ˚F and
45% humidity
5 domains of animals welfare
model that llows for animal welfare assessnent and grading
Correct Answers nutrition
physical environment
health
behavioral interactions
mental states
A flock of birds are scheduled to go to slaughter. The flock
owner raises the feeders up at 2am. The catching crew arrives at
3am. The crew is done catching the entire flock by 6:15am, at
which time the truck delivers the birds to a processor 3 hours
away. At 10:30am, the forklift operator takes a 15 minute break.
The birds are kept in holding for 2 hours and 10 minutes before
being unloaded and shackled. From that point on, the birds are
fully slaughtered, processed and in the cooler within 20 minutes.
Given the time frame of the above scenario, which of the
following outcomes would you expect to observe? Select all that
apply? Correct Answers Live bird shrink between 4.5-5%
Assuming that Flock A and Flock B are of similar genetics and
have identical distributions of body weights, with which flock
will I accomplish more rapid genetic improvement toward
,heavier body weights in subsequent generations, from the
selected breeding population (highlighted in red)? Flock A or B?
flock a is higher with selected population than flock b Correct
Answers flock b
because fewer birds with desired trait were selected so there will
be an increase of genetic progress with each generation
At what embryonic age might you expect an egg to receive an in
ovo vaccination? Correct Answers day 17-19
Avian influenza
affects how many birds
2 proteins in virus
2 categories
describe path
how many affected in 2015 outbreak Correct Answers about 25
million
25 states affected
proteins- hemagglutin and neuramindase
categories- LPAI(most common) not as serease
HPAI-spreads rapidly, severe illness, mortality
path- waterfowl-shorebirds-domestic poultry
2015- >50 million
Between 13-to-19 weeks of age, continued weight gain should
be achieved by depositing which of the following tissues?
Correct Answers muscle
medullary bone
repro tract
,Biosecurity
describe
structural vs procedural
examples Correct Answers practice and technique used to
prevent or contain disease introduction into
flock/premise/farm/etc
examples (structural) lines of seperation, perimeter buffer area,
specific routes farm equipment, identiify water source, one entry
site
examples (procedural)- SOPs, PPE, visitor logs, footbath,etc
Briefly discuss two management factors that are related
to/impact feed intake. Correct Answers how management
makes feed accessible to the chickens. This could the
palatability of the feed, methods of feeding, or frequency of
feeding.
environmental factors. For example if the chicken is under a lot
of stress they may not feel like eating or they may over eat.
Housing conditions may also influence a chickens feed intake.
Broiler chickens can drink from both nipple-type and bell-type
(Plasson) drinkers. Choose one type of drinker (nipple-type or
bell-type) and tell me how you would optimize, monitor, and
manage ideal drinking behaviors of your flock. Correct
Answers nipple drinker. I would optimize this by being sure it
is at the appropriate heigh for my flock. I would be sure to clean
it would regularly and have a good quality nipple drinker like a
shiny drinker so attract the birds. I would monitor this nipple
, drinker by checking to be sure the temperature of the water is in
the right range 59-70 degrees Fahrenheit. I would also be sure
the nipple feeder is at the right height and placement for my
flock. I would manage the nipple feeder by being sure I have
enough nipples for the whole flock. There needs to be 1 nipple
per 12 birds. I would also be sure the pressure is correct
depending on the age of my birds.
Bronchitis Virus
List some traits
What ages susceptible
Transmission
Immunity what specific
High or low morbidity, high or low mortality Correct Answers
All ages susceptible
Traits- acute, highly contagious, viral, respiratory virus
Transmission-inhalation of virus droplets
Immunity is strain specific
High morbidity low mortality
Considering the appropriate order in which things must take
place, match steps 1-6 with the appropriate action.
Steps in taking bird to slaughter list steps 1-6 Correct Answers
1. feed withdraw
2. live bird catching
3. cooping and hauling
4. receiving and holding
5. unloading and hanging (shackling) of live birds
6.stunning