AVS 353 Equine Reproduction

Cartoon Archive

Welcome!
The purpose of this page is to provide links to cartoons, spreadsheets or other documents drawn in class. The cartoons are grouped according to subject. Cartoons are labelled by date of the lecture.

Aristotle and Equine Reproduction
...in which we grade Aristotle on his knowledge of equine reproduction.

2025_01_22

Basic Mammalian Reproduction
...in which we discuss basic mammalian reproduction and hormones.

2025_02_12
2025_02_05-Hormone Table
2024_02_21
2024_02_14
2024_02_07
2024_01_31

Reproductive Anatomy
Estrous cycle review and Reproductive Anatomy: Pineal gland, hypothalamus, pituitary, ovaries, uterus, follicle, CL, counter current exchange mechanism for systemic distribution of prostaglandin, uterine glands, myometrium, cervix, changes with cycle, etc.

Reproductive Seasonality
Reproductive Seasonality: a review of imposed breeding seasons and reproductive patterns through the year. Understanding seasonal changes in the mare is the key to making good breeding management decisions.

Estrous Cycle
Estrous Cycle: a review of the changes between estrus and diestrus of equine behavior, ovarian dynamics (follicular growth, ovulation, CL maintenance and luteolysis), gonadotropins (FSH and LH), ovarian steroids (estrogen and progesterone), inhibin, and prostaglandin F 2 alpha.

Endocrinology of Pregnancy
Endocrinology of Pregnancy. The three luteal responses, the role of progestogens and estrogens from the ovary and fetoplacental unit (fetal gonads and placenta) in supporting pregnancy. Appearance of equine chorionic gonadotropin to drive second and third luteal responses. Development of the fetus and fetal movement.

The embryonic vesicle, its mobility. Early embryology related to appearance on ultrasound. Allantois and yolk sac. Formation of the three walled placenta.

Pregnancy and Foaling

The Stallion
Drug Use in Equine Reproduction

Nutrition on the Breeding Farm

Assisted Equine Reproduction