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ANATOMI DAN FISI OLOGI REPRODUKSI TERNAK Oleh : Nurul Isnaini

ANATOMI DAN FISI OLOGI REPRODUKSI TERNAK Oleh : Nurul Isnaini. PERBANDINGAN ORGAN REPRODUKSI TERNAK JANTAN. Diagram of the reproductive system of the (a) bull; (b) ram; (c) boar; and (d) stallion. Male Reproductive Tract. Bull Reproductive Tract. Male Reproductive Tract.

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ANATOMI DAN FISI OLOGI REPRODUKSI TERNAK Oleh : Nurul Isnaini

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  1. ANATOMI DAN FISIOLOGI REPRODUKSI TERNAKOleh : Nurul Isnaini

  2. PERBANDINGAN ORGAN REPRODUKSI TERNAK JANTAN Diagram of the reproductive system of the (a) bull; (b) ram; (c) boar; and (d) stallion.

  3. Male Reproductive Tract

  4. Bull Reproductive Tract

  5. Male Reproductive Tract

  6. Organ reproduksi ternak jantan dapat dibagi menjadi 3 bagian: • Organ kelamin primer  gonad jantan,  testis / testiculus • Kelenjar pelengkap dan sistem saluran • Alat kelamin luar (organ kopulatoris  penis)

  7. BAGIAN ORGAN RPR TERNAK JANTAN: • Scrotum • Testis • Epididimis • Vas deferens • Uretra • Ampula • Vesica seminalis • Prostata • Cowper’s gland • Penis • Preputium

  8. ORGAN REPR JANTAN DAN FUNGSINYA

  9. Testes produce sperm & testosterone Sperm production occurs in seminiferous tubules See Fig. 46.12

  10. Testes produce sperm & testosterone Sperm production occurs in seminiferous tubules At puberty, testosterone production begins in interstitial cells See Fig. 46.12

  11. Testes produce sperm & testosterone Sperm production occurs in seminiferous tubules Sertoli cells regulate sperm production & nourish developing sperm See Fig. 46.12

  12. Testes produce sperm & testosterone Sperm production occurs in seminiferous tubules Spermatozoa are produced by spermatogonia See Fig. 46.12

  13. b. Sperm

  14. Head Nucleus – DNA Acrosome – Enzymes Human sperm – almost no cytoplasm; carries male DNA to egg DNA See Fig. 46.12

  15. Head Nucleus – DNA Acrosome – Enzymes Midpiece Mitochondria – Energy Human sperm – almost no cytoplasm; carries male DNA to egg DNA See Fig. 46.12

  16. Head Nucleus – DNA Acrosome – Enzymes Midpiece Mitochondria – Energy Tail Flagellum – Propeller Human sperm – almost no cytoplasm; carries male DNA to egg DNA See Fig. 46.12

  17. THE FEMALE REPRODUCTIVE SYSTEMThere are 7 major parts of the female reproductive system:1. 2.3. 4.5.6.7. Ovaries Oviducts Uterine horns (2) Body of the uterus Cervix Vagina Vulva

  18. Cow Reproductive Tract

  19. Sow Reproductive Tract

  20. Sow Reproductive Tract

  21. Cow

  22. Cow

  23. Oviduct CL Ovary

  24. Uterus

  25. Uterus Cervix Vagina & Vulva missing

  26. Cow Reproductive Tract

  27. Female Reproductive System • Cervix • Area between the uterus and vagina • Normally closed • Opens at estrus and parturition • (2 -3 inches)

  28. Female Reproductive System • Vagina - the female organ of copulation 1. admits penis 2. receives semen (except in sow) 3. passageway for fetus at parturition • Bladder - storage organ for urine • Vulva - extended genitalia; opening for both urinary and genital tracts

  29. Female Reproductive System

  30. Sow

  31. Sow Uterine horns

  32. Uterus Oviduct Ovary

  33. Sow Ovary Follicles

  34. Vagina Vulva Bladder

  35. Histology ovary

  36. Hormonal control of the oestrus cycle:Hormones from the brain’s “master gland” (pituitary) initiate development of egg-bearing follicles in the ovary

  37. Hormonal control of the oestrus cycle:Estrogen produced by egg-bearing follicles stimulates the growth of the uterine lining

  38. Hormonal control of the oestrus cycle:If pregnancy does not begin: 1) The corpus luteum breaks down2) Progesterone levels fall

  39. Fertilization may lead to pregnancy…Sperm deposited in the vagina during copulation swim through the uterus into the Fallopian tubes, where they may encounter an egg Sperm Sperm Sperm Sperm Oocyte (egg)

  40. Fertilization may lead to pregnancy…Sperm release enzymes that break down the barriers around the egg (corona radiata and zona pelucida) oocyte Zona pellucida – jelly-like layer around egg Corona radiata – layer of accessory cells around egg

  41. Fertilization may lead to pregnancy…Fusion of the nuclei of an egg and one sperm (fertilization) produces a zygote oocyte Zona pellucida – jelly-like layer around egg Corona radiata – layer of accessory cells around egg

  42. Reproduction in Poultry Objective: Specify how the reproductive system for poultry functions

  43. Reproduction in Poultry The poultry reproduction tract has five parts: 1) Vagina • Holds the egg until laid 2) Uterus • Secretes the shell 3) Isthmus • Adds the two shell membranes 4) Magnum • Secretes the albumen 5) Infundibulum • Where fertilization takes place

  44. Reproduction in Poultry • Major difference: • Embryo of livestock develop inside the female’s body while the embryo of poultry develops inside the egg. • Poultry only have the left ovary and oviduct when mature • The yolk is the ovum • Chicken Incubation • 21 days

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