11. Avian Male

Question 1

Spermatogenesis, Steroidogenesis

Answer 1

Testis

Question 2

Transport spermatozoa from testes – vas deferens

Answer 2

Epididymis

Question 3

Transport spermatozoa from epididymis – cloaca

Answer 3

Vas deferens

Question 4

-Vestigial in most birds (like cloacal kiss
when mating) except geese

Ratites
(ostrich, emu, kiwi, cassowary, rhea and other large birds)

-No intromittent penis but a phallus

Answer 4

Penis / Phallus

Question 5

Penile erection involves -engorgement of phallus with lymph-like fluid from the ____ ____ ____

(craniolateral extension of phallus in the cloacal wall)

Answer 5

corpus vascularis paracloacalis

Question 6

Secretion adds to the volume of the semen

Reason: Absence of accessory sex glands

Answer 6

Secretory Cells of excurrent ducts epithelium

Question 7

Fruit ICE Candy

male domestic avian is low in:

Answer 7

Fructose

Inositol
Chlorine
Ergothioneine

Citrate

Question 8

PENILE SEMEN

Answer 8

1.0 mL
(relatively small volume)

Question 9

Semen concentration

Answer 9

3.5-4.0 million sperms/cu.m.

Question 10

Semen volume collected from cloaca of hen after mating

Answer 10

0.11 mL