- GnRh goes to FSH- Progesteroneo When ovary opens corpus luteum is released and progesterone is released- Estrogeno Standing heat – estrus - Cell divisiono Humans – 46 chromosomes- Estrous Cycle - femaleo Period of standing heato Estrogen levels are higho Dogs – 6 monthso Cats – variableo Rabbit – none- Breeding management dogso Anestrus – no estrus activity (about half the year)o Proestrus – stage previous to estrus High GnRH hormoneo Estrus High estrogen production- Breeding management catso Seasonally polyestrous – long day Estrous cycles when days get longer (summer)o Many cycles per year Due to daylighto Reach sexual maturity at about 1 year- Dogs – 40 - Cats – 150 – 200- Rabbits – 200- Guinea pigs – 100- Hamsters – 100- Gerbils – 90- Contraceptive measureso Dogs and cats – done early- Overpopulationo Feral – once they were pets, breed in wildo 70,000 puppies and kittens born/yearo 1.5 million feral cats in UK- reproduction assignmento read article a review of feral cat