REPRODUCTION PHYSIOLOGY OF

CATTLE

Principle of Reproduction

decreasing reproduction

efficiency

increasing efficiency of the

production

Female

Tubula Genitalia

Oviducts

Uterus

Cervix

Vagina

Vulva

Supporting tissue

Ovaries

Male

Testes

Functional Morphology Scrotum and Spermatic Cord

Temperature control Epididymis

Transport Concentration

Storage Maturation

Epididymis

Function Morphology

•covered with the tunica vaginalis,a serous tissue•The outer layer of the testes,the tunica albuginea testis•contains germcells(spermatogonia) and nursa cells (Sertolicells)•Leydig (interstitial) cells are found in the parenchyma of the testes between the seminiferous tubules

Temperature Control

•Higher temperature causes degeneration of the cells lining the wall of the seminiferous tubules•In cattle ambient temperaturesrange from 5o

21o,the temperature inside the testes will be about 4o below body temperature(38.6o)•The role of the scrotum and spermatic cord in temperature control of the testes involved drawing•Actual cooling of testes occurs by two mechanisms

Accessory Glands • located along the

pelvic portion of the urethra

• contribute to the fluid volume of semen

• assure optium motility and fertility of semen

Vesicular Glands• a pair of lobular

glands• appearance of a

"cluster of grapes."• Unique organic

compounds

Prostate Gland • single gland located

around and along the urethra, posterior to the excretory ducts of the vesicular glands

• small contribution to the fluid volume of semen

Bulbourethral Glands• located along the

urethra near the point where it exits from the pelvis

• contribute very little to the fluid volume of semen

• prevent semen from flowing bak

Glans Penis

Bull Boar

Ram Stallion

THANK YOU