Final 6 Flashcards
Main broiler breeds=?
ross and cobb
Main egg laying breeds?
Lohmann Hyline ISA Shaver Bovan
Main breed in Canada for turkeys
Broad breasted white
3 tiers of supply management
production planning- the supply of the product is kept stead by determining how much of the product to produce every quota period
Import controls
Producer Pricing
Broiler breeder flocks
hens and roosters are housed together at a ration of ~10 hens: 1 rooster
-mating is natural
-light duration and intensity
21 wks: longer day length (11hrs) ; higher intensity
How long can eggs be stored for and how?
can be stored for at least 7 days at 12-16 C and 75% humidity with the small end pointed downward
-proper storage conditions prevent the embryo from developing while preventing moisture loss
Total incubation time for an egg is?
21 days
Setter stage
1st stage of incubation
1-18 days
eggs are turned every hour
-on day 18 the eggs are transferred from the setter to the hatcher
Hatcher stage
second stage of incubation (d 18-21)
humidity is increased to soften shell so chick has easier time melting
At one day of age chicks are processed:
-health check
-sexed
-spray-vaccinated against :
bronchitis virus +/- coccidiosis
Can chicks and poults thermoregulate?
no, not very well for first 7 days
-need to ensure we pre-heat the barn to 32-33C
Major markets for broilers
cornish game hen
3kg
Layer breed flocks
- egg industry also has breeder flocks
- hens and roosters are housed together
- mating is natural
- hatching eggs are sent to the hatchery
Pullet flocks
-one day old pullets are transferred from the hatchery to a rearing facility
Key management factors in pullet flocks
- achieve target weight for age
- maintain flock uniformity
- consistent environmental temp. and air quality
- minimize feed wastage
- ensure good health management and vaccination programs
- provide proper light stimulation