Reproductive System PDF

Male Reproductive System LIVESTOCK MALE REPRODUCTIVE SYSTEM PARTS: Scrotum external covering of testis protects testis from injuries and provide environmental condition for sperm formation (cremaster and tunica dartos) Testis – main sex organ of male - production of testoster...

Male Reproductive System LIVESTOCK MALE REPRODUCTIVE SYSTEM PARTS: Scrotum external covering of testis protects testis from injuries and provide environmental condition for sperm formation (cremaster and tunica dartos) Testis – main sex organ of male - production of testosterone (Leydig cells) - sperm production (seminiferous tubules)  Duct System Epydidymis – sperm maturation Vas Deferens – convey sperms to the urethra Urethra – common passage of sperm and urine Penis – male organ of copulation, for introduction of sperms to female  Accessory Glands Prostate – unpaired, secretes substances for sperm nourishment Seminal vesicles – produce seminal fluid that transport and protect sperm Cowper’s gland - secretes fluid that neutralizes the urine residue in the urethra  Abnormalities Cryptorchid – failure of testes to descent  Unilateral – only one testes failed to descent (monorchid)  Bilateral – both testes failed to descent Orchitis – inflammation of the testes BOAR BULL  AVIAN MALE REPRODUCTIVE SYSTEM DIFFERENCE OF MALE AVIAN’S REPRODUCTIVE PARTS FROM LIVESTOCK:  testicles located inside the body  no accessory glands  small copulatory organs (papillae or small projections) ROOSTER FEMALE REPRODUCTIVE SYSTEM  FEMALE LIVESTOCK REPRODUCTIVE SYSTEM  Ovaries – main sex organ of female - production of ovum - production of estrogen and progesterone  Fallopian tube/ oviduct – site of fertilization  Uterus – site of implantation of fertilized ovum  Cervix – protect uterine contents  Vagina – organ of copulation  Vulva – common passage of urine and reproductive products  Clitoris – rudimentary organ homologous to glans penis in the male  AVIAN FEMALE REPRODUCTIVE SYSTEM DIFFERENCE OF AVIAN FEMALE REPRODUCTIVE SYSTEM FROM LIVESTOCK:  Only one ovary (left one)  Oviduct is modified  Cloaca instead of vulva Ovary forms the yolk MODIFICATIONS OF OVIDUCT  Infundibulum – funnel shaped part of oviduct and site of fertilization  Magnum – secretes albumen  Isthmus – secretes shell membrane Uterus serves as shell gland Cloaca common passage of excreta, urine and egg  12. 15. 11. 13. 14. 1 and 2 difference between male livestock and avian 3. Also know as the pregnancy hormone of female 4. Failure of testes to descent 5. Inflammation of the testes 6. It protects the uterine contents 7. And 8. thermoregulatory muscle of the testes 9 and 10 diff bet female