Relationship between ultrasonic assessment of the corpus luteum and plasma progesterone concentration in heifers

Analysis of Repeated Measurements of Animals

J. L. Gill, H. D. Hafs · Journal of Animal Science · 1971 · 833 citations

Animal Performance, Nutrition, Animal Behaviour +13

Ultrasonography of the bovine ovary

Roger A. Pierson, O.J. Ginther · Theriogenology · 1984 · 347 citations

Animal Physiology, Animal Reproduction, Theriogenology +6

Ultrasonic imaging of the ovaries and uterus in cattle

Roger A. Pierson, O.J. Ginther · Theriogenology · 1988 · 285 citations

Medical Ultrasound, Theriogenology, Fertility +6

Ultrasonographic appearance of the bovine conceptus from days 10 through 20

Sandra Curran, Roger A. Pierson, O.J. Ginther · Journal of the American Veterinary Medical Association · 1986 · 169 citations · Full text

Ultrasonic evaluation of the bovine conceptus

John P. Kastelic, Sandra Curran, Roger A. Pierson et al. · Theriogenology · 1988 · 120 citations

Medical Ultrasound, Theriogenology, Engineering +5