asc 340 exam 1 questions & answers 2024/2025
hatchery - ANSWERSbuilding that is used to incubate and hatch egg laying species
incubate - ANSWERSto provide heat, ventilation, humidity, and turning of fertile eggs to develop an embryo
incubator (setter) - ANSWERSmechanical device that is u...
hatchery - ANSWERSbuilding that is used to incubate and hatch egg laying species
incubate - ANSWERSto provide heat, ventilation, humidity, and turning of fertile eggs to develop an
embryo
incubator (setter) - ANSWERSmechanical device that is used to incubate eggs
hatcher - ANSWERSmechanical device where eggs are placed during the last three days of incubation to
hatch
hatching egg - ANSWERSavian egg that is produced to create a new individual
fertile egg - ANSWERSavian egg that contains a developing embryo
infertile egg - ANSWERSavian egg that contains only a female gamete
set - ANSWERSplacing eggs in an incubator or group of eggs placed in an incubator at the same time
pipping - ANSWERSact of the chick penetrating the shell membranes and shell with its beak
(# of fertile eggs / # of eggs set) x 100 - ANSWERSpercent fertile equation
(# of eggs hatched / # of eggs set) x 100 - ANSWERSpercent hatch equation
(# of eggs hatched / # fertile eggs) x 100 - ANSWERSpercent hatch of fertile equation
,1. dirty
2. cracked
3. small
4. very large or double yolk
5. poor shells
6. grossly misshapen - ANSWERSqualities of eggs unsuitable for hatching (6)
1. storage prolongs incubation time
2. hatchability depressed by prolonged stage
3. body weights can be depressed - ANSWERSeffects of storing eggs (3)
carbon dioxide, water - ANSWERS_____ and ______ diffuses out of egg through pores during storage;
concentration declines rapidly during the first 12 hours after the egg is laid
-contributes to loss in hatchability and chick quality
1. temperature
2. humidity
3. ventilation
4. turning - ANSWERSincubator must provide (4)
single stage incubator - ANSWERSall eggs in incubator are set at the same time
-best biosecurity but least energy efficient
1. same embryonic stage
2. allows adjustments
3. improved biosecurity
4. flexibility in egg # - ANSWERSadvantages of single stage incubator (4)
, requires more management - ANSWERSdisadvantage of single stage incubator
multi stage incubator - ANSWERSeggs set at different times in incubator
2. adjustments at fixed point - ANSWERSmulti stage incubator disadvantages (2)
1. temperature
2. age
3. size - ANSWERSfactors that affect total incubation time (3)
mouth - ANSWERSbeak, no teeth
-contains salivary glands with enzymes
-cleft palate
amylase - ANSWERSchickens and turkeys do not contain salivary ______ but sparrows do
esophagus - ANSWERStube that connects the mouth to the rest of the digestive tract
crop - ANSWERSlocated in the neck
-used to store food
-secretion of mucus that lubricates dry feed
-mixes feed with water
proventriculus - ANSWERStrue stomach
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