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Reproduction. Topic # 3025 Reproductive System Melinda Klockziem. Female Hormones. Estrogen Produced by follicle and further develops follicle Progesterone Produced by CL, sustains pregnancy and inhibits new follicle development. Female Hormones. Prostaglandin
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Reproduction Topic # 3025 Reproductive System Melinda Klockziem
Female Hormones • Estrogen • Produced by follicle and further develops follicle • Progesterone • Produced by CL, sustains pregnancy and inhibits new follicle development
Female Hormones • Prostaglandin • Produced by the uterus and causes CL to regress and new follicle to develop • Relaxin • Produced by the CL and causes ligaments around birth canal to relax • Oxytocin • Produced by the posterior pituitary and causes milk let-down
Male Hormone • Testosterone • Produced by Leydig cell and is critical to normal sperm development
Swine • Estrous Cycle • 21 day intervals • Signs of Heat • Swollen vulva • Standing heat • Lordosis • Gestation • 114 days average
Cattle • Estrous Cycle • 21 day intervals • Signs of Heat • Standing heat, restless • Gestation • 282 days average
Sheep • Estrous Cycle • 16 days interval • Signs of Heat • Difficult to Detect • Sterile Ram • Chalking device • Gestation • 150 days www.dymark.com.au/packaging&marking/ Rural_Industry.htm
Goats • Estrous Cycle • 21 day intervals • Signs of Heat • Rapid tail wagging • Gestation • 149 days
Horses • Estrous Cycle • 21 day intervals • Signs of Heat • Teasing with Stallion • Squatting • Frequent urination • Winking of vulva • Gestation • 330 days Country Girl Klockziem
Rabbits • Estrous Cycle • Induced ovulation • Signs of Heat • Sometimes aggression • Gestation • 30 days http://www.dutchrabbit.com/graphics/bluec.jpg
Dogs • Estrous Cycle • 4-12 months • Signs of Heat • Standing heat, tail flagging • Gestation • 63 days Winston and Jax Klockziem
Cats • Estrous Cycle • Induced ovulations • Signs of Heat • Vocal, rubbing, rolling, overall annoying behavior • Gestation • 63 days Didi Klockziem