Equine chorionic gonadotropin
Artificial insemination
Estradiol benzoate
Pregnancy rate
Pregnancy
Follicular phase
Follicle
Medicine
Insemination
Crossbreed
Follicle-stimulating hormone
Internal medicine
Endocrinology
Hormone
Animal science
Ovulation
Andrology
Biology
Luteinizing hormone
Sperm
Ovariectomized rat
Genetics
