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Poultry Science Final Exam
Poultry Science Final Exam
213
Agriculture
Undergraduate 2
02/01/2017

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Term
soft scalding
Definition
(50 -54.5 C) Retains the cuticle and yellow pigmentation. Preferred for whole carcass market
Term
hard scalding
Definition
(55- 60 C) Removes the cuticle so white skin, this process is much better for further processing (much better for batter/breading adhesion).
Term
Name 3 of the top 5 broiler producing states and indicate who is the highest broiler producing state.
Definition
-GA
-AR
-AL

GA is the highest broiler producing state
Term
Provide the 10 steps of broiler processing in chronological order
Definition
-Harvesting
-Slaughter
-Scalding
-Picking
-Transfer
-Evisceration
-Inspection
-Giblet Harvesting
-Washing
-Chilling

HSSPTEIGWC
Term
further processing
Definition
-Is not used consistently throughout processing
-Includes cut-up, debone, custom packing
-Includes margination, breading, cooking
Term
Describe why poultry production grew substantially between the years of 1920 and 1950?
Definition
-Mrs. Wilmer Steele's establishment of the broiler industry in Delmarva
-boll weevil damaged cotton crop such that farmers in some parts of the South switched to poultry
-Jesse Jewell's vertical integration system
-poultry needed to feed soldiers in WW2 (beef and pork were rationed, but poultry wasn't)
-Chicken of Tomorrow Contest in 1948
Term
some things Poultry Science deals with
Definition
-Rearing of live poultry (live production)
-Processing of poultry meat
-Business management
-Animal health
Term
the 2 different types of chilling methods used for broiler carcasses
Definition
-air chilling
-water immersion
Term
How do human and avian red blood cells (erythrocytes) differ?
Definition
-avian erythrocytes are 1.5X larger than human erythrocytes
-avian erythrocytes have a nucleus and human erythrocytes don't
Term
Provide the three anatomical characteristics that increase the surface area for nutrient absorption in the intestine
Definition
-circular folds
-villi
-microvilli
Term
In the spent fowl market, what is the difference between heavy mature chickens and light mature chickens?
Definition
-heavy mature chickens are broiler breeders
-light mature chickens are egg layers
Term
advantages of hard scalding
Definition
-much better for further processing (much better for batter/breading adhesion)
-easier to remove feathers
Term
5 possible outcomes USDA-FSIS inspection
Definition
-passed
-condemned
-viscera only condemned
-trim and reprocessing (affected parts)
-cleaning reprocessing (surface contamination)
Term
What is the feed conversion ratio for broilers?
Definition
1.7
Term
How long does it take before a chick becomes homothermic?
Definition
10-14 days
Term
The normal body temperature of an adult chicken
Definition
104
Term
The “window for fertilization” in the chicken infundibulum is around _________.
Definition
15 minutes
Term
amount of time egg spends in infundibulum
Definition
15-30 min
Term
Chickens need about ____ g of water per ____ g of feed.
Definition
2
1
Term
amount of time egg spends in magnum
Definition
2-3 hrs
Term
What temperature is considered “physiological zero” for chicken embryos?
Definition
20 Celsius
Term
amount of time egg spends in shell gland
Definition
20 hrs 45 min
Term
The half-life of growth hormone (GH) is around __________.
Definition
20 minutes
Term
When are broiler breeder pullets moved into the laying house?
Definition
21 weeks
Term
If the outside air is at 100% humidity at 40 F, what will be the humidity when that same air comes into the house and warms to 80 F?
Definition
25%
Term
The average processing plant processes about _________ birds each day to keep up with demand.
Definition
250,000
Term
How long is the incubation period for a turkey egg?
Definition
28 days
Term
The mature sperm contains _____ chromosomes.
Definition
39
Term
What is a typical, modern broiler house’s dimensions?
Definition
54 X 500 ft.
Term
When considering the cost of poultry production, feed cost contributes _______% of the overall production cost.
Definition
70%
Term
What percent of a typical broiler diet contains corn?
Definition
72%
Term
amount of time egg spends in isthmus
Definition
75 min
Term
How long is feed withdrawn prior to harvesting for the processing plant?
Definition
8-12 hours before slaughter
Term
Approximately ______ billion broilers are processed each year.
Definition
9
Term
____________ and ____________ are the two main proteins involved in muscle contraction.
Definition
Actin
Myosin
Term
The _____________ is a circulatory system whose function include respiration, digestion and waste removal.
Definition
Allantois
Term
Proper ventilation minimizes respiratory tract damage from _________ and reduces levels of bacterial and aerial endotoxin exposure.
Definition
Ammonia
Term
The _______________ forms a sac that fills with fluid which the embryo floats and provides for a shock absorbing environment.
Definition
Amnion
Term
How does LAPS kill the bird?
Definition
Asphyxiation
Term
The talpid 2 mutation that demonstrated chickens have a nonfunctional genetic pathway to produce teeth is an example of a(n) ________________.
Definition
Atavism
Term
Where are the ARCB kept?
Definition
Athens
Term
____________ action is when hormones are secreted and act on the same cell that secreted them.
Definition
Autocrine
Term
Which of the following is a top primary breeder operation?

Tip Top Poultry
Avigen
Pilgrim’s
House of Raeford
Definition
Avigen
Term
Which section of the feather is used in feather rendering for production of feather meal, diapers or flower pots?
Definition
Barbs
Term
What part of the feather can be rendered to make a variety of products?
Definition
Barbs
Term
Why did agricultural experts in the early 1900s believe that poultry would never become a large commercial industry?
Definition
Because farm women depended on poultry for their spending money, it would remain a side business
Term
Why can Gainesville, GA claim the title of “Poultry Capital of the World”?
Definition
Because it is the birthplace of vertical integration
Term
Which of the following is NOT true of poultry as compared to mammals?
Definition
Bird bone are relatively heavy to aid in stress associated with flight.
Term
Where does the majority of heat in a broiler house come from when the birds are 6 weeks of age?
Definition
Birds
Term
What is the goal of minimum ventilation?
Definition
Bring air across the ceiling to increase its temp and lower its humidity before dropping it to the floor on the birds.
Term
Small feathers often found around the eyes and mouth are called...
Definition
Bristles
Term
___________ from the hypothalamus stimulates the anterior pituitary to secrete ACTH.
Definition
CRH
Term
__________ and _____________ are needed for contraction of skeletal muscle.
Definition
Calcium
ATP
Term
______________ are the primary sites where gaseous exchange and delivery of nutrients occurs.
Definition
Capillaries
Term
NFE (nitrogen-free extract) can be used to classify _________ in feed.
Definition
Carbohydrates
Term
Where will you find the highest temperature in the broiler house?
Definition
Ceiling
Term
What is present in each chicken egg there are two twisted membranous strips that help keep the yolk centered as it transverses the oviduct.
Definition
Chalaza
Term
Where was the oldest known chicken fossil showing evidence of early domestication recently found?
Definition
China
Term
All steroid hormones share this commonality
Definition
Cholesterol
Term
What poultry breed type is associated with the “giant Chinese chickens” that came to England in the 1880s?
Definition
Cochin
Term
Where is the number 1 employment area in the processing plant?
Definition
Deboning
Term
Bile produced in the liver and stored in the gallbladder has the function of...
Definition
Emulsifying lipids to aid in digestion
Term
Broilers will eat to primarily fill their __________ needs.
Definition
Energy
Term
__________ is most common form of killing the broiler in US, while ________ is the most common form in Europe.
Definition
Exsangunation
Electrocution
Term
how is FCR calculated?
Definition
FCR = (lbs feed consumed / lbs of live weight gained)
Term
Bile salts are stored and concentrated in the ____________.
Definition
Gall Bladder
Term
KFC would prefer their chicken undergoes this process?
Definition
Hard scalding
Term
Erythrocytes contain this oxygen binding molecule.
Definition
Hemoglobin
Term
hypothalamus-anterior pituitary-adrenal axis
Definition
Hypothalamus → CRH → Anterior Pituitary → ACTH → Adrenal Gland → Cortisol

cortisol inhibits ACTH and CRH
Term
The nest boxes and female feeders in a broiler breeder house are located ____.
Definition
In the slats.
Term
What happens to the broiler breeder ovary if they are over-fed?
Definition
Increases the number of hierarchical follicles.
Term
These two hormones are secreted by the pancreas
Definition
Insulin and glucagon
Term
In broiler breeders, what is “spiking” the flock?
Definition
Introducing new males into the flock
Term
Which of the following companies is a major turkey producer?

Koch
Wayne’s Farm
Jennie-O
Arbor Acres
Definition
Jennie-O
Term
Who is credited with developing the concept of vertical integration in the US poultry industry?
Definition
Jesse Jewell
Term
The ___________ layer covers the inner lining of the gizzard and protects it from the acidic secretions of the ________________.
Definition
Koilin
proventriculus
Term
A surge of this gonadotrophin, _________, occurs about 4-6 hours prior to ovulation in birds (23 hours in humans).
Definition
LH
Term
Why might a company choose to pack product in “dry ice snow” vs “ice packing”?
Definition
Less messy, longer shelf life, lighter
Term
___________ cells in the testes are more responsive to LH, while __________ cells in the testes are responsive to FSH.
Definition
Leydig
Sertoli
Term
Mucus physically traps microbes and contains _________, a protein that can destroy bacterial cell walls.
Definition
Lysozyme
Term
____________ marks the demarcation between the jejunum and the ilium.
Definition
Meckel’s diverticulum
Term
What is the name given to poultry bones that supply a source of calcium for egg shell development?
Definition
Medullary bone
Term
What is the scientific name for the turkey?
Definition
Meleagris gallopavo
Term
Which embryonic layer gives rise to muscles, bones, blood and the reproductive system?
Definition
Mesoderm
Term
The main job of a broiler producer is to...
Definition
Minimize stress
Term
This Act in 1862 and 1890 established colleges for the teaching of agriculture in each state.
Definition
Morrill Land Grant Act
Term
Which of the following states is a major turkey producing state?

Washington
Idaho
New Jersey
North Carolina
Definition
NC
Term
Chickens that have been killed, bled and had the feathers removed are known as _____________________.
Definition
New York Dressed
Term
The advantage of using fish meal in the diet of layers is that the egg will be fortified with _____________.
Definition
Omega-3 fatty acid
Term
Cell signaling in which a cell secretes a hormone that binds to a receptor on an adjacent cell is called...
Definition
Paracrine
Term
Virgin birth or ____________ is known to occur in some varieties of turkeys.
Definition
Parthenogenesis
Term
The term “par-fried” means...
Definition
Partial frying – used to set breading/batter without fully cooking
Term
The foramen triosseum is an opening through which the tendon of the __________________ passes to raise the wing during flight.
Definition
Pectoralis minor
Term
What process in the processing plant once required a lot of manual labor but is now fully automated and done by machines.
Definition
Picking feathers
Term
a type of bird that can produce crop milk
Definition
Pigeons
Term
Poultry bones that are directly involved with the respiratory system are called...
Definition
Pneumatic bones
Term
What is offal?
Definition
Portions of the carcass not normally consumed by humans
Term
Why is feed withdrawn from broilers before slaughter?
Definition
Primary goal is intestinal emptying (ZERO tolerance for visible fecal material going into chiller…all carcasses would be condemned)
Term
_______________ are the tracts of skin where feathers reside, whereas featherless areas are called _______________.
Definition
Pteryla
apteria
Term
The _____________ takes deoxygenated blood from the __________ to the lungs.
Definition
Pulmonary artery
right ventricle
Term
inferior and superior vena cava → ______ → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
RA
Term
_________________ is thought to be the major common ancestor to all domesticated chickens, but _____________ may have contributed the ability for our modern broilers to incorporate yellow pigmentation into the skin
Definition
Red Jungle Fowl
Grey Jungle Fowl
Term
This poultry company currently has an ad campaign against the “no antibiotics ever” movement?
Definition
Sanderson
Term
_______________ is the functional unit of skeletal muscle.
Definition
Sarcomere
Term
This Act in 1914 established the cooperative extension service with land grant universities?
Definition
Smith Lever Act
Term
Which of the following muscles are responsible for peristalsis?
Definition
Smooth muscles
Term
The lack of _____________, make it difficult for birds to swallow without the aid of gravity.
Definition
Soft palate
Term
“Harvesting” in terms of the processing of poultry refers to
Definition
Taking birds from the chicken house and placing them in “dump coops”
Term
What attaches muscles to bones?
Definition
Tendons
Term
What is broiler house “litter”?
Definition
The bedding placed in the before chicks arrive
Term
Why does green muscle disease occur in broilers?
Definition
The green color is produced by the breakdown of hemoglobin and myoglobin to bile salts.
Term
The ____________ secretes a hormone that increases the body’s metabolic rate, promotes alertness, quickens reflexes and stimulates the development of the nervous system.
Definition
Thyroid gland
Term
Why limit the pullets for 8 hours of light during rearing?
Definition
To prevent pullets from reaching sexual maturity too early
Term
A mature turkey male is called a __________, while an immature male turkey is called a _________.
Definition
Tom
Jake
Term
Who inspects the birds in the processing plant?
Definition
USDA
Term
What policy change is a result from the Veterinary Feed Directive?
Definition
Use of antibiotics
Term
This measurement is often used to assess the effect of pre/pro biotics on intestinal health.
Definition
Villi height
Term
In the US, this is the most common method for chilling
Definition
Water immersion
Term
Today’s modern broiler chicken is basically a cross between
Definition
White Plymouth Rock and White Cornish
Term
These two muscle myopathies have been increasing over the past 10 years and are of increasing concern for the poultry industry.
Definition
Woody Breast
White Striping
Term
Which chromosome pair best represents a hen?
Definition
ZW
Term
After the ovum has been fertilized it is now called a _________, which has all ______ chromosomes.
Definition
Zygote
78
Term
amount of time egg spends in vagina
Definition
a few minutes; maybe 30 sec to 1 min
Term
function of magnum
Definition
addition of albumen to egg
Term
What is natural passive immunity in birds?
Definition
antibodies from the egg yolk and/or bird milk
Term
an example of natural passive immunity
Definition
antibodies from the egg yolk and/or bird milk
Term
an example of artificial passive immunity
Definition
antivenom
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → ______ → systemic
Definition
aorta
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → ______ → aorta → systemic
Definition
aortic valves (dub)
Term
What process in turkey breeding is used that is different from broiler breeders?
Definition
artificial insemination
Term
Why could someone say that it isn’t GH that is stimulating the growth it is mostly due to IGF-1?
Definition
because IGF-1 leads to growth via hypertrophy (growing cells larger) and hyperplasia (mitosis, proliferation).
Term
Why does the starter diet have a lower ME than the finisher diet in broiler production?
Definition
because the starter diet has a higher protein content, lowering the fat and carbohydrate content

since protein is less energy dense than fat, this reduces the amount of metabolizable energy (ME) in the starter diet
Term
Why must artificial insemination be used with turkeys?
Definition
because turkey breasts are too big for them to mate naturally
Term
how amino acids get absorbed into enterocytes
Definition
by way of the sodium-amino acid co-transporter
Term
What is a WOG?
Definition
carcass that has had its giblets removed; WOG stands for "without giblets"
Term
What is feather pecking?
Definition
chickens pecking at each other such that the ones being pecked at lose some feathers; redirected foraging behavior
Term
which bone is number 24?
[image]
Definition
clavicle
Term
What is long thought to be thought of as the initial reason for the domestication of poultry?
Definition
cock fighting/entertainment
Term
function of vagina
Definition
connects shell gland to cloaca
Term
Feathers associated with flight are called...
Definition
contour
Term
At what day of age does the chick heart begin to beat?
Definition
day 3
Term
Why have hocks or chicken feet become important to Georgia poultry integrators?
Definition
demand for it in China and other Asian markets
Term
Provide the chronological order of the small intestines
Definition
duodenum --> jejunum --> ilium

DJI
Term
function of egg shell gland
Definition
egg plumping, shell deposition, pigmentation and cuticle addition
Term
function of infundibulum
Definition
engulf ovulated ovum and site of fertilization
Term
Sperm in humans are stored in the __________________, while in the rooster most of the sperm are stored in the __________________.
Definition
epididymis
vas deferens
Term
What is the common link for vitamins A,D,E and K?
Definition
fat soluble
Term
What does FCR stand for?
Definition
feed conversion ratio
Term
which bone is number 22?
[image]
Definition
femur
Term
which bone is number 14?
[image]
Definition
humerus
Term
The ______________________________ is the connection between the anterior pituitary and the hypothalamus, while ____________________ is the connection between the hypothalamus and posterior pituitary.
Definition
hypothalamo hypophyseal PORTAL system
hypothalamo hypophyseal TRACT
Term
______ → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
inferior and superior vena cava
Term
Trace the flow of blood through the heart as it enters the heart from the systemic circulatory system, travels to the pulmonary circulation and finally leaves the heart in a return to the systemic system. (draw this!)
Definition
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Term
advantages of water immersion chilling
Definition
it increases product moistness
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → ______ → left ventricle → aortic valves (dub) → aorta → systemic
Definition
left AV valve (bicuspid, mital) (lub)
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → ______ → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
left atrium
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → ______ → aortic valves (dub) → aorta → systemic
Definition
left ventricle
Term
The ______________________ is a breed from the Mediterranean class that has become a prolific layer and is responsible for the vast majority of table eggs in the US.
Definition
leghorn
Term
_________________ is considered the critical fatty acid in poultry nutrition.
Definition
linoleic acid
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → ______ → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
lungs (picked up O and discharged CO2)
Term
How do migration fences increase the efficiency of production in the house?
Definition
making the bird density in the house more uniform
Term
What are some measures that can be taken to reduce green muscle disease?
Definition
measures to reduce wing flapping, such as...
-reduce amount of entry/exit in house
-look for stressful stimuli
Term
What is a good, cheap and efficient way to estimate the amount of feed consumed in a poultry house?
Definition
measuring the amount of water consumed, because chickens tend to drink 2 grams of water for every 1 gram of feed they consume
Term
an example of natural active immunity
Definition
memory cells as a result of sickness
Term
an example of artificial active immunity
Definition
memory cells as a result of vaccination
Term
Provide two “critical” amino acids that need to be accounted for when formulating poultry feed: _____________________ and _______________________.
Definition
methionine
lysine
Term
Why might one predict that feather pecking has a potential to increase over the next 10 years in with laying hens?
Definition
might increase due to "cage free" movement; chicks more likely to feather peck when cage free
Term
________________________ is the oxygen binding protein predominately found in dark meat muscles of the chicken (give the meat its deeper red color).
Definition
myoglobin
Term
The _________________ is superficial, large breast muscle that powers the down stroke of the wing, while the comparatively smaller ________________________ muscle powers the up stroke of the wing.
Definition
pectoralis major
pectoralis minor
Term
___________________ is the protease that is secreted by the proventriculus and starts the process of protein digestion.
Definition
pepsin
Term
____________________ is a fluid filled, thin membrane that surrounds the heart and allows it to beat in an environment with reduced friction.
Definition
pericardium
Term
advantages of soft scalding
Definition
preferred for whole carcass market
Term
Who was the first president to make pardoning of the turkey offered by the National Turkey Federation official presidential policy?
Definition
probably Truman
Term
how vertical integration works in the poultry industry
Definition
process in which a single company owns 2 or more stages in the supply or value chain (e.g., production and processing) with a common management control

[image]
Term
the hormone that stimulates the production of crop milk in pigeons and flamingoes
Definition
prolactin
Term
which bone is number 21?
[image]
Definition
pubis
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → ______ → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
pulmonary artery
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → ______ → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
pulmonary valves (dub)
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → ______ → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
pulmonary veins (R&L)
Term
which bone is number 13?
[image]
Definition
radius
Term
advantages of air chilling
Definition
reduce cross contamination
Term
one advantage associated with beak trimming in broiler breeders
Definition
reduced pecking related injury
Term
one disadvantage associated with beak trimming in broiler breeders
Definition
removes beak tip such that it can become harder to eat
Term
inferior and superior vena cava → RA → ______ → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
right atriventricular valve (tricuspid) (lub)
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → ______ → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → systemic
Definition
right ventricle
Term
____________________ sets in shortly after death and causes muscles to be stiff and stay in a contracted state.
Definition
rigor mortis
Term
which bone is number 15?
[image]
Definition
scapula
Term
function of the oviduct
Definition
site of egg formation and path of sperm migration
Term
function of isthmus
Definition
site of inner and outer egg shell membrane deposition
Term
What secondary sexual characteristic on male turkeys has an important role in both intra- and intersexual selection?
Definition
snood
Term
Why is natural passive immunity important for broiler breeders?
Definition
so that chicks have immunity to specific diseases
Term
_____________________ are the male gonadal stem cells that allows for spermatogenesis to be a continuous process in the seminiferous tubules of the rooster.
Definition
spermatogonia
Term
which bone is number 27?
[image]
Definition
sternum
Term
inferior and superior vena cava → RA → right atriventricular valve (tricuspid) (lub) → right ventricle → pulmonary valves (dub) → pulmonary artery → lungs (picked up O and discharged CO2) → pulmonary veins (R&L) → left atrium → left AV valve (bicuspid, mital) (lub) → left ventricle → aortic valves (dub) → aorta → ______
Definition
systemic
Term
which part of the bird's leg is number 13?
[image]
Definition
tarsometatarsus
Term
______________ is where sperm are produced in the rooster.
Definition
testes
Term
Which of the following proteins would require a transport protein while in the blood?

LH
Testosterone
Oxytocin
Insulin
Definition
testosterone
Term
What happened in 1948 that contributed greatly to the genetic stock of modern broiler production?
Definition
the Chicken of Tomorrow Contest
Term
Commercially, _________________________ is the only commercially important turkey variety.
Definition
the broad-breasted white
Term
How are breeder roosters prevented from eating hen feed?
Definition
the female feeders, located at the slats, have bars that are too narrowly spaced for the heads of the males, but wide enough for the heads of the females
Term
How are breeder hens prevented from eating rooster feed?
Definition
the male feeders are located in the scratch area at a height that’s too high for the females to reach
Term
Provide one benefit of the secretions from the uropygial (preen) gland gland
Definition
they can be used to waterproof the feathers
Term
which bone is number 29?
[image]
Definition
tibia
Term
What is the purpose of scalding?
Definition
to loosen feather for easier feather removal
Term
_____________________ is an enzyme in raw soybean meal that can significantly compromise amino acid absorption and growth in broilers.
Definition
trypsin inhibitor
Term
which bone is number 12?
[image]
Definition
ulna
Term
The ________________ is an external gland located on the dorsal side of birds.
Definition
uropygial (preen) gland
Term
______________ is where sperm are stored in the rooster.
Definition
vas deferens
Term
You are a manager of a poultry production facility and you noticed that broilers from one of you farms have a high incidence of hock burns. What would you look out for as a potential contributing factor when you visit the house?
Definition
wet litter and droppings
Term
something that contributes to yellow coloration in poultry skin and egg yolk
Definition
xanthophyll
Term
depiction of the oviduct
Definition
[image]
Term
Diagram the hypothalamus-pituitary-testicular axis and provide the different hormones that are released. On the diagram be sure to show both the stimulatory and inhibitory effects of the hormones in the reproductive axis.
Definition
[image]
[image]
Term
Provide the process of protein digestion from the release of trypsinogen into the duodenum to the absorption of amino acids into the enterocytes. For full credit, make sure you include the activation of the proteases (zymogens) and their absorption into the enterocytes. (draw this!)
Definition
[image]
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