1. Advanced Animal Science
ANIMAL REPRODUCTION
Advanced Animal Science

4. Male Anatomy Terms to know
Seminiferous Tubules
Interstitial Cells
Sperm
Testes
Ejaculate
Scrotum
Epididymis
Urethra
Penis
Testosterone

8. Terms: Sterile: can’t produce live sperm
Ridgeling male in which neither testicle descends from the body cavity (hereditary trait)
Cryptorchidism: one testicle does not descend from the body
Sheath: tubular fold of skin that houses the penis
Septum: divides the two sacs of the scrotum

10. Spermatic cord: house the vas deferens. What is cut during castration.
Testosterone: develops and maintains accessory sex glands; stimulates secondary sexual characteristics; regulates sexual behavior and sperm production

13. Sigmoid Flexure: found in bulls, rams, and boars
Sigmoid Flexure: found in bulls, rams, and boars. Extends the penis from the sheath
Retractor Penis Muscle: helps retract the penis back into the sheath
Penis: deposits the semen with in the female reproductive tract

14. Male Anatomy

15. Male Anatomy

17. Male Poultry Terms
Vas Deferens: carry the seminal fluid and sperm cells to the cloaca
Cloaca: the enlarged part where the large intestine joins the end of the alimentary canal
Alimentary canal: the food-carrying passage that starts at the mouth and ends at the vent
Papilla: the organ in the wall of the cloaca that puts the sperm cells into the hen’s reproductive tract

18. Four influences on sperm production:
Frequency of ejaculation
Hours of light in a day
Age
Testicle size

19. Female Anatomy Terms to know
Ovaries
Estrogen
Progresterone
Follicle
Ovulation
Cervix
Ovum
Uterus
Oviducts

26. Placenta: attached to the endometrial lining of the uterus by tons of tiny villi; transfers blood, oxygen, and nutrition to the unborn baby

29. Female Anatomy

30. Female Anatomy

32. Reproductive Process Terms to know
Estrous
Metestrus
Proestrus
Estrus
Diestrus

37. Signs of Estrus: Stand to be mounted Nervous Restless
Swelling of the vulva
Frequent urination
Mucus discharge
Mount other cattle
Shake and raise tail

42. Other Reproductive Hormones
Oxytocin: stimulates uterine contractions and milk let down
Prolactin: promotes lactation and stimulates the CL
Luteinizing Hormone: stimulates ovulation, CL function, secretion of progesterone and secretion of estrogen in the female
Estrogen: promotes female sexual behavior, growth of the repro tract, mammary growth, and feedback control

45. Other Repro Hormones
Oxytocin: stimulates uterine contractions and milk let down
Prolactin: promotes lactation and stimulates the CL
Estrogen: promotes female sexual behavior; stimulates sexual characteristics; growth of reproductive tract; mammary growth; feedback control