The Avian Reproductive System

Question 1

no intromission during copulation, sperm deposited in female through _________

Answer 1

Cloacal Kiss

Question 2

_________ is then produced stimulating broodiness or the mothering instinct, and then hen will incubate or “set” on the eggs until they hatch

Answer 2

Prolactin

Question 3

the time that elapses from the time an egg is incubated by the hen (natural) or placed into an incubator (artificially) until the chick is hatched

Answer 3

Incubation Period

Question 4

reffered to as the hatching eggs

Answer 4

Fertile eggs

Question 5

called table eggs

Answer 5

Infertile eggs

Question 6

when the yolk is fully formed, the follicle that houses it ruptures along a streak called _______, whose muscle provides a tension on the follicle.

Answer 6

Stigma

Question 7

shedding and replacing of feathers

Answer 7

Molting

Question 8

opens to cloacal wall

Answer 8

Vas deferens

Question 9

(female avian reproductive system) appear cluster of various sizes of yolk or developing follicles (ova)

Answer 9

Left Ovary

Question 10

(female avian reproductive system) parts showing passage time of an egg

Answer 10

Left oviduct

Question 11

reproduction in poultry (for males):

Answer 11

• testes located within the body cavity
• vas deferens open in cloacal wall
• no penis but have a “papillae”
• sperm deposited in female though “cloacal kiss”

Question 12

reproduction in poultry (for females):

Answer 12

• produces young that are not suckled or fed with milk.
• egg is laid outside the body and is much larger than in mammals.
• no well-defined gestation period or
  do not demonstrate an estrous cycle.
• has sperm-host glands in the oviduct.

Question 13

a similar counterpart of gestation period in birds is the _________________.

Answer 13

Incubation period

Question 14

incubators for chicken eggs are usually set at about _____°C. (75% relative humidity, 21% oxygen)

Answer 14

37.7°C

Question 15

eggs stay in the incubators until _________ before hatching and are placed in a hatcher where the temperature is _____________ and humidity is ______________.

Answer 15

2-3 days
* temperature is slightly lower
* humidity is slightly higher

Question 16

avian eggs:

Answer 16

• being laid
• has commercial value
• whether fertilized or not, expelled out of the body
• contain nutrients needed to support the needs of the developing embryo inside the eggs

Question 17

mammalian eggs:

Answer 17

• ovulated into the oviduct where it is fertilized by the sperm in the fallopian tube.
• if not fertilized, resorbed in the oviduct.
• nutrition dependent on the mother’s supply

Question 18

each productive cell is called an ______

Answer 18

Ovum

Question 19

Ovum contained in a thin envelope of the ovary called _______

Answer 19

Follicle

Question 20

funnel of the oviduct

Answer 20

Infundibulum

Question 21

Fertilization occurs in the infundibulum and within half an hour of the egg’s arrival, it departs for a journey of about ____hours in an assembly-line formation

Answer 21

25 hours

Question 22

Structure of the egg:

Answer 22

1. Shell
2. Shell membrane
3. The white (albumen)
4. Yolk
5. Germinal disc (blastoderm)