Poultry 2 Flashcards
Which province produces the most chicken meat?
Ontario
Trans-ovarian egg transmitted diseases? 3
- Salmonella pullorum
- Avian Encephalomyelitis
- Mycoplasmas
What is the importance of humidity in the environment with eggs?
70-80%
Prevents eggs from sucking moisture from environment which may contain bacteria - egg explosion
Do you wash chicken eggs? Why or Why not?
no, have film which prevent entrance of bacteria through pores
Do you wash turkey eggs? Why or Why not?
Yes
2 ways to destroy microbes on eggs
- Spraying with or washing in disinfectant
2. Fumigation with formaldehyde gas
Physical set up of incubation
- Setting (setter/incubator) - every hour tray turns
2. Hatching (hatcher) machine - eggs lay flat
Too hot or too cold in setter?
Too hot - dehydrate, higher mortality rate, stick to shell, hatch too fast
Too cold - take too long to hatch, more culls
What happens to air cell as egg matures?
Gets bigger
Humididty - Too dry, too wet?
Too dry - can die
Too wet - soggy chicks, higher mortality rate
How often should you turn chicken eggs/
At least 8 times/day
Point of ventilation
Remove CO2 and provide O2
What is omphalitis in hatchlings?
Mushy Chick disease
- Umbilicus doesnt completely close and bacteria gets into gut
What is the major cause of 1st week mortality?
Omphalitis in hatchlings
