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Poultry 1
poultry
61
Agriculture
Undergraduate 4
11/24/2014

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Term
What are the major types of poultry? What are their characteristics? Breeds?
Definition
Broiler (Ross & Cobb)
-fast growth, high breast yield, large body

Layers (Lohmann, Hyline, Shaver, Bovan)
-light weight, high egg production

Turkeys (Broad Breasted White)
-heavy boned, large body, programmed for high breast yield

Breeders
-used to produce fertilized eggs for the next generation of broilers/layers/turkeys
Term
What are the minor poultry types?
Definition
Ducks & geese
Ratites (ostriches, emus, rheas)
Pigeons
Game birds (quail, partridges, pheasants)
Term
What are the following?

Pullet
Cockerel
Poult
Tom
Definition
What are the following?

Pullet - immature female chicken
Cockerel - immature male chicken
Poult - baby turkey
Tom - male turkey
Term
How is poultry supply managed in Canada?
Definition
-government endorsed partnership regulates production & import
-quota is set, divided by province, based on consumption levels
-producers must purhase quota
-price fluctuates
-quota is huge financial investment for farmers!
Term
What is the maximum population size at which you can raise poultry without quota?
Definition
50 turkeys
99 layer chickens
300 broiler chickens
Term
What are the 3 pillars of supply management?
Definition
Production planning
-keep steady supply based on pre-determining how much to produce each quota period

Import controls
-crucial in determining how much product needs to be produced to meet needs

Producer pricing
-negotiated by farmers to establish a fair price base on costs
Term
What are the goals of supply management? (3)
Definition
-match supply & demand for the commodity
-pay steady prices to farmers that cover production costs & allow for steady income
-consumer have consistent supply of high-quality product at reasonable prices, without government subsidies!
Term
What provinces are the main poultry producers?
Definition
Ontario
Quebec
BC
Term
True or False

Chicken is the largest source of protein consumption in Canada?
Definition
True
Term
What are fowl?
Definition
laying hens who are no longer productive, and are shipped for meat
Term
What are the primary broiler breeding companies? Multiplier companies? Commercial producers?
Definition
Primary
-Great grandparent & grandparent lines

Multiplier
-parent flock & hatcheries

Commercial producers
-commercial flock
Term
At what age do birds begin laying fertilized eggs? How long is their laying cycle?
Definition
approx. 26 weeks of age

34-36 week laying cycle
Term
How many eggs will a breeding hen lay in her lifetime?
Definition
150-160 fertilized eggs
Term
What is the average 'hatchability' of eggs produced?
Definition
81.6%
Term
How are broiler hens fertilized?
Definition
live cover (don't use AI)

10 hens : 1 rooster
Term
Describe the light duration/intensity for housing conditions of broiler breeders
Definition
<21wks = 8hrs, low intensity (short day)
>21 wks = 11hrs, higher intensity (long day)
Term
What are the typical storing conditions of broiler hatching eggs (before incubation)? Time, temperture, humidity, position? Why is this important
Definition
7 days
12-16 degrees C
75% humidity
Small end downwards

This prevents embryo from developing & prevents moisture loss
Term
What are the stages of incubation?
Definition
Setter (day 1-18)
Hatcher (day 18-21)
Term
Describe the conditions during the setter phase of incubation (temp, humidity, position)
Definition
38 C
58-60% humidity
Turn eggs every hour
Term
Describe the conditions during the hatching phase of incubation. What also occurs during the hatcher phase of incubation?
Definition
65% humidity

In-ovo vaccination for Marek's disease
Term
Describe the processing that occurs for broiler chicks in their first day of life
Definition
-health check
-sexing (sometimes)
-spray vaccination for bronchitis & coccidiosis
-placed into shipping box, transported to commercial farm
Term
Describe the process of preparing the barn for chick arrival
Definition
-remove manure & old litter
-dry clean to remove dust
-wet clean using water & detergent
-disinfect barn surfaces & equipment, water lines
-add clean bedding (shavings/straw)
-lower feed & water lines
-pre heat barn
-place chick paper, supplemental feeders & waterers
-turn on heat lamps
Term
True or False

Chicks cannot maintain their own body temperature at early stages of life
Definition
true
Term
What can you do to ensure chicks find feed & water stations upon arrival to the commercial farm?
Definition
-place chicks on floor in strategic locations
-provide 23 hours of light for first 1-3 days so they can see the feeders & waterers
Term
Why would you use lower light intensity in broiler barns?
Definition
Reduces aggression, to minimize scratches which would lower carcass value
Term
What are the key requirements for optimal growth & quality of broiler flocks? (8)
Definition
-health
-feed
-air/ventilation
-light
-temperature & humidity
-water supply
-stocking density
-litter
Term
At what age are broilers marketed?
Definition
28-50 days old
Term
What are the 'categories' of broiler markets?
Definition
Cornish game hens (young hens)
-the small whole chickens you can purchase

Fryer (pullets)
-'KFC' market, drumsticks, etc

Broiler
-'Swiss Chalet' market

Roaster
-3kg
Term
Describe the processing that takes place for layer chicks in their first day of life
Definition
-health check
-sexed
-beak trimmed
-spray vaccinated against bronchitis & coccidiosis
-placed in shipping box, transported to rearing farm
Term
Why is it important to raise laying pullet flocks in the same type of housing system as the production facility where they will later be transferred?
Definition
Because they learn how to navigate a system when they are young, and may not be able to learn a new system efficiently enough to maximize weight gain later
Term
What is the goal of a pullet grower?
Definition
-grow a uniform flock of pullets capable of achieving their genetic potential in the layer barn
Term
What are the key management factors when raising pullet flocks (6)
Definition
-achieve target weight for age
-maintain flock uniformity
-consistent environmental temp & air qual
-minimize feed waste
-health management & vaccination programs
-proper light stimulation
Term
Describe the typical diet of pullet flocks
Definition
-chicks are started on a high-protein diet which is gradually stepped down
-2 weeks before laying diet must be high in calcium to build medullary stores
Term
True or False

Pullets are vaccinated almost every week of their lives
Definition
True
Term
Why is it important to control day length when rearing pullet flocks? When would you increase day length and why?
Definition
-repro tract development accelerates as day length increases
-day length influences hormones released from pituitary which control ovary development

-gradually increase day a few weeks before entering laying barn, once pullets have reached target weight
Term
Describe a typical lighting program for pullets & layers
Definition
23hr day for 1-3 days of age
Gradually decrease length from 4d to 20 wks
Increase a few weeks before laying, and through laying from 20-72 wks of age to 16-17hr days
Term
At what age are pullets transferred to the production barn?
Definition
19 wks
Term
Describe the housing systems of layer flocks
Definition
Conventional cages
-4 to 7 tiers high, 5-7 birds/cage
-manure belts

Furnished/Enriched Cages
-4 tiers, 40-80 birds/cage
-manure belts

Free run, aviaries, free range
-may or may not have manure belts in aviaries
Term
True or False

There are no differences in space requirements for brown vs white birds
Definition
False

Brown birds are slightly larger, need more space per bird
Term
How long does it take to form an egg? How many eggs does a laying hen lay per year? What is the average life span of a laying hen?
Definition
24hrs
320 eggs/year
17 months
Term
What nutrients should be supplemented to prevent cage layer fatigue?
Definition
Calcium & Vit D
Term
What is the target size of an egg in production?
Definition
Large (56-62g)
Term
True or False

Extra large & jumbo eggs are more highly valued
Definition
False

Producer don't get any extra income for extra large or jumbo eggs
Term
True or False

Canada is a major exporter of turkey poultry genetics
Definition
True
Term
True or False

Hens and toms (turkeys) are housed together and bred live-cover
Definition
False

House separately, bred via AI
Term
How is the incubation period at a turkey hatchery? What are the phases?
Definition
28 days

25d in setter
3d in hatcher
Term
Describe the processing involved for poults in their first day of life
Definition
-health check
-sexed (always)
-beak trimmed, toe-trimmed, de-snooded
-spray vaccinated against coccidiosis (sometimes)
-transported to commercial farm
Term
Describe the housing system in the brooding phase of turkey flocks. What age are turkeys in this phase?
Definition
Up to 5/6 weeks old

-closed floor barn
-wood shavings
-brooder ring to feed
-supplemental heat
-supplemental feeders & water sometimes to prevent piling
Term
Describe the housing system in the growing phase of turkey flocks. What age are the turkeys?
Definition
Up to 11-17 weeks of age

-single level, closed or curtain-sided floor barns
-star or wood shavings, litter often re-used
Term
True or False

Turkeys kept in the 'growing' phase are given fresh litter when moved from the brooding barn
Definition
False, the litter is often re-used
Term
At what age are turkeys marketed?
Definition
10-18wks
Term
Describe the different major markets for turkey
Definition
Broilers (5.3kg)
Hens (7.9kg) typical whole-bird market
Toms (14.8kg) these are usually further processed
Term
Describe the general infection cycle in poultry
Definition
1. Pathogens shed in droppings, dander, aerosols
2. Direct transmission (bird to bird) or indirect (equipment/insects to bird)
3. Repeat!
Term
What are the 3 tiers of biosecurity?
Definition
On-farm disease control
Prevent pathogen entry to farm
Prevent pathogen spread within farms
Term
What are the aspects of on-farm disease control
Definition
Prevention
Early detection
ID & treatment of dieases
Term
Describe the zones of access control in biosecurity
Definition
Controlled Access Zone
-poultry production area, with a secured, controlled access point
e.g. entire facility incl. bins & outbuildings

Restricted Access Zone
-inside the CAZ, more restricted
e.g. barn

Controlled Access Point
-defined entry points through which all traffic must enter the CAZ & RAZ
e.g. driveway entrance, parking lot entrance
Term
What are the main aspects of poultry health management
Definition
Bird introduction/movement/removal
Pest control
Manure & deadstock mangement
Down time
Cleaning & disinfection
Monitoring flock health
Term
Why is bird introduction/movement important?
Definition
all-in all-out system within 7 days enables proper cleaning, no contamination between flocks
-historical records of all pullets
-know that the source supplying the flock has a disease control program
Term
What is down-time?
Definition
period of time between barn emptying and intro of new birds

-the longer it is the more pathogens are reduced
Term
Why is cleaning & disinfection important?
Definition
-removal of manure & dry cleaning reduces the down-time to 14 days
-washing & disinfection reduces to 7-10 days
Term
What are some important aspects of monitoring flock health?
Definition
-daily observation
-daily mortality/cull counts
-vaccination & medication records
-disease diagnosis records
-feed & water consumption monitored
-output records (e.g. egg prod.) monitored
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