CAS Avian Reproduction & Breeding 2

Question 1

What is the primary environmental cue that triggers the hormonal cascade initiating reproductive behavior in most bird species?

Accepted Answer

Changes in photoperiod (day length)

Answer

Increased melatonin production

Answer

Ambient temperature fluctuations

Answer

Barometric pressure changes

Question 2

What relative humidity level is generally recommended during the first two-thirds of incubation for most parrot eggs?

Accepted Answer

40–50%

Answer

20–30%

Answer

65–75%

Answer

80–90%

Question 3

The technique of 'double clutching' in avian breeding refers to:

Accepted Answer

Removing the first clutch to stimulate the hen to produce a second clutch

Answer

Breeding two pairs of birds in the same aviary simultaneously

Answer

Providing two nest boxes per breeding pair

Answer

Cross-fostering eggs between two parent pairs

Question 4

How frequently should eggs be turned during artificial incubation to support proper embryonic development?

Accepted Answer

At least 3–5 times per day

Answer

Once daily in the morning only

Answer

Only during the first three days

Answer

Turning is unnecessary with forced-air incubators

Question 5

What does the term 'lockdown' refer to during the artificial incubation process?

Accepted Answer

Stopping egg turning and raising humidity for the final hatch period

Answer

Lowering temperature to slow embryo development

Answer

Sealing the incubator to prevent contamination

Answer

Temporarily cooling eggs for transport

Question 6

In hand-rearing chicks, at what point should feeding stop to avoid crop stasis or aspiration?

Accepted Answer

When the crop is visibly full and slightly firm

Answer

When food begins backing up into the esophagus

Answer

When the chick stops vocalizing

Answer

When the crop feels completely rigid

Question 7

Imprinting in hand-raised birds primarily affects which of the following?

Accepted Answer

The bird's social identity and future bonding/breeding partners

Answer

The bird's foraging technique and food preferences

Answer

The bird's territorial vocalizations

Answer

The bird's migration instinct