Transcript Reproductive Systems

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
Semen
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