reproductive- male

reproductive- male - Reproductive Physiology: The male and...

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Reproductive Physiology: The male and Applied Reproduction 10-11-10
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Objectives Compare and contrast the male reproductive forms between species Differentiate between placentation of various species
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Bovine Male Reproductive Tract
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Swine Reproductive Tract Testis and scrotum is inside Tip of the penis=cork screw shape
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Feline Reproductive Tract Barbed penis in cats because it induces ovulation of female cat. Female cats ovulate when there is sperm Another induced ovulator animal is mice
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Elephant Reproductive Tract Testis are internal
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Testicles Within the testicles there are Seminiferous tubules Where they Produce sperm Leydig cells in the intestitial space Interstitial cells Where Testosterone is prPduced
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Epididymis Long tube: 100 feet or more Seasonal breeder- females that start cycling based on the dark that is present Sheep short day breeders Horse long day breeders Site of … Sperm storage Sperm maturation Sperm death Sperm reabsorption
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Scrotum Houses testicles and epididymis Why? Temperature regulation
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Scrotum Temperature Regulation Tunica dartos Muscle layer that goes around the scrotu Cold days=contracts> decreases SA Warm days= relaxes> increases SA Pampiniform plexus Series of arteries and veins that regulate temp Rams: 9-13° cooler making the ram’s scrotum larger Bulls: 3-7° cooler Elephants: internal (doesn’t need temp reg.)
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reproductive- male - Reproductive Physiology: The male and...

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